SYNOPSIS OF NORTH AMERICAN BIRDS.

II. FAMILY FALCONIDÆ. THE FALCONS, HAWKS, EAGLES, KITES.

Head and neck usually covered with feathers, but in a few instances partially naked; bill, usually very strong, curved and very sharp; tarsi and toes, generally strong and muscular; claws, curved, sharp; wings, various, but usually large, and adapted to swift and vigorous flight. Size, very much varied, body generally very compact, and organized for strength and activity of habits, and for the destruction of living animals. Female larger than the male.

Inhabit all parts of the world, numerous in the temperate and torrid regions.

I. SUB-FAMILY FALCONINÆ. THE TYPICAL FALCONS.

Bill, short, hooked, upper mandible always furnished with a well defined tooth; head, rather large; feet and tarsi, very strong; toes and claws, long, the latter very sharp and strong; wings, long, pointed; tail, rather lengthened.

Embracing about fifty species, inhabiting all parts of the earth, and may be regarded as presenting the highest organization of the Rapacious form of Birds.

A.

I. Genus Falco. Linnæus Syst. Nat., I. p. 124. (1766.)

General form, robust and powerful; bill, short, with the upper mandible curved, and with a distinct tooth; nostrils, circular, with a central tubercle. Wings, long, pointed, formed for vigorous and rapid flight; tail, rather long; tarsi, short, robust, covered with rounded or hexagonal scales; middle toe long, claws large, curved, and very sharp. This genus, as restricted, contains 86 from fifteen to twenty species, found in various parts of the world, several of which more or less intimately resemble the Falco peregrinus of Europe, and the Falco anatum of America. They are remarkable for exceedingly rapid flight, and great boldness in attacking animals on which they prey.

1. Falco anatum. Bonap. Comp. List p. 4. (1838.)

“Falco peregrinus Gm.” Wilson, Audubon and other authors.

Edwards’ Birds, I. pl. 3, 4. Wilson Am. Orn. IX. pl. 76. Aud. B. of Am. pl. 16, octavo edition, I. pl. 20. De Kay, Nat. Hist. State of New York Birds, pl. 3. fig. 8. Lembeye B. of Cuba, pl. 1. fig. 2.

Bill, rather short, strong, very sharp, with a well defined tooth in the upper mandible; wings long, legs strong, middle toe long, claws curved, sharp.

Adult. Frontal band white; top of the head, back, wing-coverts and rump, bluish cinereous; every feather crossed transversely with bands of brownish black; rump and lower part of the back lighter, and with the dark bands less numerous.

Throat, sides of the neck and upper part of the breast white, with a tinge of buff without spots, other under parts same color, with a deeper shade, and with cordate or rounded spots of black on the lower breast and abdomen, and transverse bars of the same black on the sides, under tail-coverts and tibiæ. Quills, brownish black, with transverse bars of yellowish white on their inner webs. Tail, brownish black, with transverse bars of cinereous, very pale and nearly white on their inner webs, and narrowly tipped with white.

Cheeks with a patch of black most narrow and clearly defined in the adult bird, and separated from the color of the back of the head by a white space; back of the neck, mixed with yellowish feathers, forming an irregular collar. Bill, light bluish horn color, paler at the base; legs and feet fine yellow. Sexes alike.

Younger. Entire plumage above, brownish black; nearly uniform on all parts, and with little or no appearance of the bars which are seen in the adult. Tail, uniform dark brown, with spots or irregular transverse stripes of reddish white frequently only on the inner webs. Frontal spot of white obscure, large space on the cheek, black not separated posteriorly from the same color of the head above. Under parts, white and yellowish white, every feather, except on the throat, with a wide longitudinal stripe of dark brown; the latter color prevailing on the sides and abdomen. Throat, white, nearly every feather with a very narrow central line of black. Tarsi and feet, bluish lead color.

Dimensions. Female, total length 19 to 20 inches; wing, 14½ to 15; tail, 7½ to 8 inches. Male and young smaller.

Hab. The entire eastern portion of North America, and perhaps western; Greenland? Oregon? (U. S. Ex. Exp.) Jamaica, (Mr. Gosse.) Cuba, (Mr. Lembeye.) Bermuda, (Sir W. Jardine.) Spec. in Mus. Acad. Philada.

Obs. In the adult of this species, there is a white frontal band as in the adult of the European F. peregrinus.

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It is very similar in color and general characters to that species, but is larger, and the young differ.

Audubon’s figures represent the dark-colored plumage described above as that of young or immature birds. Wilson’s figure is that of a more adult specimen, with the frontal band partially produced; but the bird in completely mature plumage, has never been figured.

This bird frequently appears in the United States, generally on the sea-coast in the autumn and winter, at which seasons, also, according to Mr. Lembeye, it visits the island of Cuba. It flies with extraordinary vigor and rapidity, and is remarkable for its bold and destructive habits.

2. Falco nigriceps. Cassin,[3] new species. The Western Peregrine Falcon.

Very similar to the preceding, but smaller, and with the bill disproportionately weaker. Very similar, also, to Falco peregrinus, but differing from both in the colors of the young bird, and in other characters. Adult. Frontal band of white, very narrow. Head and neck above, and cheeks, clear black, with a tinge of cinereous; other upper parts, bluish cinereous, every feather having transverse bands of brownish black, lighter on the rump and upper tail-coverts.

Throat and breast, pale reddish white; other under parts, lighter, with rounded spots and transverse bands of black, and with a tinge of cinereous on the flanks and abdomen. Tail above, pale bluish cinereous, with transverse bars of brownish black, and narrowly tipped with white. Patch of black on the cheek, very large, and scarcely separated from the same colors of the back of the head and neck.

Dimensions. Total length, females (of skin) about 17 inches, wing 13 to 13½, tail 6 to 6¾ inches; males, total length 14½, wing 11½ to 12, tail 5½ to 6 inches.

Younger. Entire plumage above, dark brown; many feathers, especially on the rump, tipped with rufous; tail above, brown, with a tinge of ashy, and barred with rusty on the inner webs. Under plumage pale reddish ferruginous, paler on the throat, all the feathers with broad longitudinal stripes of black, and many, also, with irregular transverse stripes of the same color, which predominates on the flanks and under wing-coverts, and which are marked with reddish white bars and circular spots. Tibia, with transverse bars of brownish black.

Dimensions. Female (of skin), total length about 17 inches, wing 12, tail 6½ inches.

Hab. Bear creek, California, (Mr. E. M. Kern.) Coast of Lower California, (Dr. Heermann.) Chili, (Lieut. Gilliss.) Spec. in Mus. Acad. Philada., and Nat. Mus. Washington.

Obs. This bird, of which we have seen numerous specimens, appears to be distinct from Falco anatum. It is uniformly smaller than either that species or F. peregrinus, but resembles Indian or other Asiatic specimens of the latter strongly. The young differ from the young of the species just 88 mentioned, especially in the deeper and different red color of the under parts of the body. In this character they more resemble Falco peregrinator of India, Falco puniceus of Africa, Falco melanogenys of Australia. It has also generally the cheeks as strongly marked with a black patch as the latter, and can, by that character, be distinguished from either F. anatum or F. peregrinus.

This species appears to inhabit the western portion of America as far south as Chili.

3. Falco polyagrus. Cassin, new species. The American Lanier Falcon.

General form robust; bill, rather short, very strong; tooth, prominent; wing, long, second and third quills longest, and nearly equal; tail, rather long. Female nearly adult. Narrow frontal band; line over the eye, cheeks and entire under parts, white; narrow stripe from the corner of the mouth, dark brown; some feathers on the breast and abdomen, with longitudinal stripes and spots of brown, which color forms a large spot on the flank, plumage on the sides also with spots of brown. Entire plumage of the upper parts, brown, many feathers with rufous edgings; paler on the rump; tail above, grayish brown, with transverse bars of white, and narrowly tipped with the same color. Quills, dark grayish brown, with numerous bars of white on their inner webs; under wing-coverts, dark brown, edge of wing at the shoulder and below, white, spotted with brown. The brown of the back extending somewhat on to the breast at the wing-joint. Bill, bluish horn color, under mandible yellow at its base. Large space around the eye, bare, with a narrow edging of brown on the first plumage encircling it.

Younger Female. Entire plumage brownish black, throat white, and many feathers on the under parts with edgings and circular spots of white; under wing-coverts, also, with circular spots of white; under tail-coverts with wide transverse stripes of white. Young Male? Frontal band nearly obsolete; entire upper parts, uniform brown, with narrow rufous stripes on the head; under parts, white, with a tinge of reddish yellow, and nearly every feather with a narrow longitudinal stripe of blackish brown; large spaces on the flanks brown. Tarsi and feet lead colored.

Dimensions. Female (of skin), total length about 20 inches, wing 14, tail 8 inches.

Hab. Sources of the Platte river, (Dr. Townsend.) California, (Dr. Heermann.) Puget’s Sound, (U. S. Ex. Exp. Vincennes.) Spec. in Mus. Acad. Philada., and in Nat. Mus. Washington.

Obs. Very similar, in the two first stages of plumage above described, to Falco jugger of India, (Gray’s Illustrations of Indian Zoology, II. pl. 26, and Jerdon’s Illustrations of Indian Ornithology, pl. 44,) but larger. We have, however, never seen the young of F. jugger in the plumage of the young of our species as described above, from Dr. Heermann’s Californian specimens. This is the first species of this group of Falcons (the Laniers and Juggers) yet discovered in America, and is especially remarkable on account of its near affinity to the Asiatic species.

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II. GENUS HIEROFALCO. Cuvier, Reg. An. I. p. 312, (1817.)

Size, large. Bill, short, thick, distinctly toothed, and with a slight festoon; wings rather shorter than in Falco; tarsi and toes shorter, the former covered with small circular scales. Color of adult usually white. Contains several species inhabiting the northern regions of both continents, nearly all of which where regarded with great favor for the purposes of Falconry.

1. Hierofalco sacer. (Forster.) The American Gyr Falcon.

Falco sacer. Forster, Phil. Trans. London, LXII. p. 423. (1772.)

Falco fusca. Fabricius Fauna Grœnlandica, p. 56, (1780,) not Gmelin, (1788.)

Falco cinereus. Gmelin, Syst. Nat. I. p. 267. (1788.)

Falco grœnlandicus. Turton, Syst. Nat. I. p. 147. (1806.)

Falco labradora. Audubon, B. of Am. p. 196, (name on plate pub. about 1834.)

“Falco candicans. Gmelin.” Bonap. Cons. Av. p. 23.

“Falco grœnlandicus. Turton,” Hancock in Ann. and Mag., Nat. Hist. II. p. 249.

“Falco islandicus. Lath.” Aud. Orn. Biog. II. p. 552.

Edwards’ Birds, II. pl. 53, young. Aud. B. of Am. pl. 196, young, (but not pl. 366 which represents another species.) Schlegel, Traité de Fauconnerie, pl. (no number,) adult. Ann. & Mag. Nat. Hist. II. pl. 10, (feathers.)

Form strong, and robust; second and third quills (in the young bird) longest and nearly equal. Adult, according to Hancock as cited above, “ground of the plumage pure white, upper parts elegantly marked with arrow shaped spots of a dark gray; under parts and head streaked with the same; wings reaching to within two inches of the end of the tail; second primary the longest.”

Young. Entire plumage, brown, tinged with cinereous on the upper parts. Throat, dull white; all the plumage of the under parts edged with and having circular spots of dull yellowish white, the rounded spots more apparent on the tibia and under tail-coverts. Quills, mottled with the same white on their inner webs; tail, with numerous (about thirteen) irregular bars of the same. “Bill and cere, pale blue; iris, brownish black. Feet, grayish blue; the under parts of the toes greenish yellow; claws dusky.” (Audubon.)

Hab. Northern America. Greenland, (Fabricius, Hancock,) Hudson’s Bay, (Richardson,) Labrador, (Audubon,) Louisville, Kentucky, (Mr. C. W. Webber.) Spec. in Mus. Nat. Hist. Soc. Charleston, S. C.

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Obs. The Gyrfalcon is of very rare occurrence in the United States, though not unfrequent in the northern regions of this continent.

Mr. Hancock, whose opportunities were ample, fully demonstrates (as cited above) that the Falco grœnlandicus of Greenland, which is the present species, and the Falco islandicus of Iceland, are distinct, which appears to be assented to by all late writers. The bird, figured by Mr. Audubon as the adult of the species of which the young bird was obtained by him in Labrador, was an Iceland specimen, (Orn. Biog. IV. p. 476,) and therefore not correctly given as the American bird. We have never had the satisfaction of seeing the adult of this species; but for an opportunity of examining one of Mr. Audubon’s Labrador specimens, we are indebted to the Rev. John Bachman, D. D., of Charleston, S. C., who, with that disposition to advance the interests of Zoological Science which has always characterized him, most kindly forwarded it at our request.

Turton’s description above cited, is copied by him from Pennant’s Greenland Falcon, Arctic Zoology, I. p. 257.

III. GENUS HYPOTRIORCHIS. Boie Isis, p. 976. (1826.)

DENDROFALCO. Gray list, p. 3. (1840.)

Size small, tarsus lengthened and rather slender. In all other characters much like typical Falco. Toes long, slender and furnished with sharp, curved claws. This genus includes about ten or twelve small species found in various parts of the world, and for the greater part dark colored, like the species of typical Falco.

1. Hypotriorchis columbarius. (Linn.) The Pigeon Hawk.

Falco columbarius. Linn. Syst. Nat. I. p. 128. (1766.)

Falco intermixtus. Daudin, Traité d’Orn. II. p. 141. (1800.)

Falco temerarius. Aud. B. of Am. I. p. 381. (1831, plate pub. 1829)

“Falco æsalon. Temm.” Rich. and Sw. Faun. Bor. Am. Birds, p. 37.

Cat. Car. pl. 3. Vieill. Ois. d’Am. Sept. pl. 11. Wils. Am. Orn. II. pl. 15, fig. 3. Faun. Bor. Am. Birds, pl. 25. Aud. B. of Am. pl. 75, 92. Oct. ed. I. pl. 21. De Kay, Nat. Hist. N. Y. pl. 4, fig. 9.

Small, head and body broad and strong, bill short, wing pointed with the second and third quills longest, tail slightly rounded, tarsi and toes slender. Adult male. Entire 91 plumage of the upper parts dusky slate color, inclining to bluish, every feather with a black longitudinal line. Forehead and throat white, other under parts pale yellowish or reddish white, every feather with a narrow longitudinal stripe of brownish black, plumage of the tibia, light rusty red, with narrow stripes of black. Quills black, with transverse bands of white on their inner webs, and narrowly tipped with ashy white, tail above light bluish cinereous tipped with white, and with a wide subterminal band of black, and with several other narrower bands of black, inner webs nearly white. Cere and feet yellow, bill blue.

Middle age or winter plumage? Entire upper plumage, brownish black, slightly mixed with rufous on the head and neck behind, white of the face, and under parts more deeply tinged with reddish yellow, dark stripes wider, plumage of the sides, with wide transverse bands of brownish black, predominating on some feathers, and the yellowish white, assuming the form of circular spots. Tail dark brown, nearly black tipped, and with four bars of white, upper tail coverts with spots of white at their bases. Feet yellow.

Younger and adult female? Entire upper plumage, dusky brown, quite light, and with a tinge of ashy in some specimens. Head above with narrow stripes of dark brown and rusty red, and in some specimens, many irregular spots and edgings of the latter color, on the other upper parts. Forehead and entire under parts white, with longitudinal stripes of light brown. Plumage of the sides and flanks light brown, with pairs of circular spots of white, tibia white, with dashes of brown, tail above and below pale brown, with about six bands of white. Neck behind with a distinct band of white.

Dimensions. Total length (of skin,) females, 12 to 14 inches, wing, 8 to 9, tail, 5½ inches. Male. Total length, 10 to 11 inches, wing, 7½ to 8, tail, 5 inches.

Hab. North and South America. Wisconsin, (Dr. Hoy.) California, (Mr. J. G. Bell.) Oregon, (Col. M’Call, Dr. Townsend.) Cuba, (M. de Sagra.) Jamaica, (Mr. Gosse.) New Granada, (M. Parzudaki.) Bermuda, (Sir. W. Jardine.) Spec. in Mus. Acad. Philada.

Obs. The adult of this species is with difficulty distinguishable from the European H. æsalon, but we have never seen the latter in the nearly black plumage, which we regard as characterizing the young or winter plumage, of the American bird. The light, “liver brown” plumage, represented by European authors as the female of F. æsalon, frequently occurs in this bird, and is given by Rich. and Swains. in Fauna Boreali Americana, Birds, pl. 25. The adult which appears to be Falco temerarius, Aud., is figured in B. of Am. pl. 75, the other figures by Aud. pl. 92, and Wilson’s plate, represent this bird in the dark plumage as described above.

Adult specimens from Western America, even more closely resemble the European species, but differ from the Eastern American only in small and scarcely describable particulars, as the slightly greater extent of the white front, or the greater purity of the white of the throat and breast. We 92 regard the stage of plumage above described as that of the female, (and as figured by Rich. and Swains.) principally on account of its analogy to the female of the nearly allied European species.

This bird is of frequent occurrence in the United States. The largest specimens that we have ever seen are from Oregon, and may prove to be of a distinct species, though we cannot at present, determine.

IV. GENUS TINNUNCULUS. Vieill. Ois. d’Am. Sept. I. p. 39. (1807.)

CERCHNEIS. Boie Isis, p. 976. (1826.)—POECILORNIS. Kaup Class. der Savg. und Vog, p. 108. (1844.)

Size small, tarsus and toes lengthened, slender. Colors generally more or less rufous and white. In all other respects similar to typical Falco. This genus comprises about twelve very handsome species of small size, inhabiting various countries.

1. Tinnunculus sparverius. (Linn.) The Sparrow Hawk.

Falco sparverius. Linn. Syst. Nat. I. p. 128. (1766.)

Falco dominicensis. Gm. Syst. Nat. I. p. 285. (1788.)

Falco gracilis, cinnamominus and isabellinus. Sw. Cab. Cy. p. 281. (1838.)

Vieill. Ois. d’Am. Sept. pl. 12, 13. Cat. Car. pl. 5. Buff. Pl. Enl. 465. Wilson Am. Orn. II. pl. 16, fig. 1, and IV. pl. 32, fig. 2. Faun. Bor. Am. Birds, pl. 24. Aud. B. of Am. pl. 42. Oct. ed. I. pl. 22. Nat. Hist. N. Y. Birds, pl. 7, fig. 16.

Small, wings moderate, tail rounded. Adult Male. Frontal band, space including the eyes and throat, white; spot on the neck behind, two others on each side of the neck, and line running downwards from before the eye, black. Head above, and wing coverts, bluish cinereous, the latter usually spotted with black. Spot on the top of the head, the neck behind, back, rump, and generally the tail above, light rufous or cinnamon red. Under parts generally a pale shade of the same color, frequently nearly white, but sometimes nearly as dark as the back, and always with more or less numerous circular, or oblong spots of black. Quills brownish black, with white bars on their inner webs. Tail tipped with white, sometimes tinged with rufous, and with a broad subterminal band of black, frequently with several of the outer feathers, white tinged with ashy, and barred with black. Bill blue, legs and feet yellow. Back generally with more or less numerous transverse stripes of black. Rufous spot on head, much varying in size, and sometimes wanting.

Female. Upper parts as above, and wing coverts, and tail rust red, with numerous transverse bands of brownish black, under parts with numerous longitudinal stripes, and on the sides and flanks, with transverse bands of the same color, external feathers of the 93 tail palest, broad subterminal band on the tail, obscure or wanting. Young Male. Wing-coverts, dark bluish cinereous with large circular spots, and with bands of brownish black, all the rufous parts with broad bands of the same color, under parts with large circular spots, and wide traverse bands of black on the sides and flanks.

Dimensions. Total length, 11 to 12 inches, wing 7 to 7½, tail 5 to 5½ inches. Sexes nearly alike in size.

Hab. The entire continent of America. California, (Mr. Bell.) Mexico, (Mr. Pease.) Cuba, (M. de Sagra.) Bermuda, (Sir W. Jardine.) Chili, (Lieut. Gilliss.) Patagonia, (Ex. Exp. Vincennes.) Spec. in Mus. Acad. Philada.

Obs. This elegant little Hawk, is one of the most handsomely colored of the Rapacious Birds of North America, and is frequently met with.

It is widely diffused, being common to all parts of the United States, and we have seen numerous specimens brought in collections from various parts of South America. The young bird has never been figured. Specimens from all parts of America are very similar, and we have seen the stages of plumage, which have been considered as indicating distinct species by eminent authors, but they do not appear to be constant, nor peculiar to any locality.

II. SUB-FAMILY ACCIPITRINÆ. THE HAWKS.

Bill short, hooked, upper mandible lobed, but not toothed. Wings rather short, tail long, and rather wide, tarsi rather long and slender, toes and claws long, the latter curved and sharp. Embraces forty to fifty species, amongst which are birds of all countries. They are very vigilant and active and swift of flight, and have as a peculiar character amongst the Falconidæ, the habit of pursuing their prey into woods and forests.

I. GENUS ASTUR. Lacepede Mem. Inst. III. p. 506.

SPARVIUS. Vieill, Anal. p. 24, (1816.) Leucospiea. Kaup, Class, p. 118, (1844.)

General form, strong, but somewhat slender; bill short, curved, festooned; nostrils large, somewhat ovate, inserted in the cere. Wings moderate; tail, long and broad. Tarsi rather lengthened; covered in front with rather wide transverse scales; toes and claws, rather long, the latter sharp. This genus contains about twelve species of all countries.

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1. Astur atricapillus. (Wilson.) The Goshawk. The Black-capped Hawk.

Falco atricapillus. Wilson Am. Orn. VI. p. 80. (1812.)

Falco regalis. Temm. P. col. I. (liv. 84 about 1827.)

Dædalion pictum. Less. Traité d’Orn. I. p. 67. (1831.)

Wilson Am. Orn. VI. pl. 52, fig. 3. Faun. Bor. Am. Birds, pl. 26. Jard. and Selby, Ill. Orn. pl. 121. Aud. B. of Am. pl. 141, Oct. ed. I. pl. 23. Temm. Pl. col. 495.

Large, general form, rather slender; wings, short. Adult. Head above, neck behind and stripe from behind the eye, black, generally more or less mixed with ashy; other upper parts bluish cinereous, with the shafts of the feathers black; a conspicuous stripe over the eye, and an obscure collar on the back of the neck white. Entire under parts white, every feather with a longitudinal line of brownish black, and several transverse narrow and usually irregular bands of ashy brown. Quills, brown, with bands of a deeper shade of the same color, and with mottled white bands on their inner webs. Tail, dark brownish cinereous, with irregular bands of brownish black, and narrowly tipped with white; under surface very pale, nearly white; under tail-coverts pure white. Young. Head above and other upper parts, dark brown mixed with rufous, especially on the head and neck. Under parts, white, tinged with fulvous, with large oblong and circular spots of deep brown.

Dimensions. Total length, female, 22 to 24 inches, wing about 14, tail 10½ to 11 inches; male, 19 to 20 inches, wing 13, tail 9½ to 10 inches.

Hab. Northern and eastern North America. Spec. Mus. Acad. Philada.

Obs. Resembles to some extent the Goshawk of Europe, (Astur palumbarius,) with which it has been confounded by some American authors. It is about the same size, but may easily be distinguished by its lighter color, and by its much narrower and more numerous bands on the inferior parts of the body. It is in all respects a distinct species, as described by Wilson and by Temminck.

The young male of this bird may readily be mistaken for the young female of the succeeding species, (Accipiter Cooperi,) but can be distinguished by the different color and markings of the under parts of the body. In some specimens of this species, the transverse bands on the under parts are so irregular or broken, as to present a nearly uniformly mottled aspect. This stage of plumage is represented in Audubon’s plate, but is not the most common.

II. GENUS ACCIPITER. Brisson, Orn. I. 310. (1760.)

NISUS. Cuvier, Regne An. I. p. 321, (1817.) hieraspiza. Kaup Class. p. 116, (1844.)

General characters very similar to those of Astur, but the species are generally more slender and much smaller. Wings short, with the fourth 95 quill usually slightly longest, shorter than in Astur; tail long; tarsi rather long and slender, and frequently with the scales of the tarsi nearly obsolete. Contains about twenty species of all countries, many of which bear more or less resemblance to the Accipiter nisus of Europe.

1. Accipiter fuscus. (Gmelin.) The Sharp-shinned Hawk. The Chicken Hawk.

Falco fuscus, and dubius. Gm., Syst. Nat. I. p. 280, 281. (1788.)

Accipiter striatus. Vieill, Ois. Am. Sept. I. p. 42, (1807.)

Falco velox, and Pennsylvanicus. Wilson Am. Orn. V. p. 116, and VI. p. 13, (1812.)

Sparvius lineatus. Vieill. Ency. Meth. III. p. 1266. (1823.)

Nisus Malfini. Less. Traité I. p. 58. (1831.)

Accipiter fringilloides. Vig. Zool. Jour. III. p. 434.? (1827.)

Temm. Pl. col. 67. Vieill, Ois. d’Am. Sept. pl. 14. Wilson, Am. Orn. V. pl. 45, fig. 1, VI. pl. 46, fig. 1. Aud. B. of Am. pl. 374, Oct. ed. I. pl. 25.

Small, tail rather long, with the end nearly even; tarsi and toes slender. Adult, entire upper parts dark brownish black tinged with ashy, occiput mixed with white. Throat, and under tail-coverts, white, the former with very fine lines of black on the shafts of the feathers; other under parts, fine light rufous, deepest on the tibia, and with transverse bands of white; shafts of the feathers with lines of dark brown. Tail, ashy brown, tipped with white, and with about four bands of brownish black. Quills, brownish black, with bands of a darker shade, and of white on their inner webs; secondaries and tertiaries, with large partially concealed white spots. Shafts of quills tinged with reddish. Young. Entire upper parts umber brown, tinged with ashy; neck behind mixed with white; greater wing-coverts and shorter quills, with large white spots partially concealed. Under parts white, with longitudinal stripes and circular spots of reddish brown, changing into transverse bands on the flanks and tibiæ; under tail-coverts, in many specimens, pure white.

Dimensions. Total length, female, 12 to 14 inches, wing 7½; to 8, tail 6½ to 7 inches; male, total length 10 to 11, wing 6 to 6½, tail 5 to 5½ inches.

Hab. Throughout North America. Hudson’s Bay, (Richardson,) Wisconsin, (Hoy,) Texas, (Audubon,) California, (Heermann,) New Mexico, (M‘Call,) Mexico, (Pease.) Spec. in Mus. Acad. Philada.

Obs. This little Hawk is one of the most common of the North American species. It is very similar, when adult, to the Accipiter nisus of Europe, but the young differ, as is the case with nearly all our Hawks which resemble birds of the old world. We have never seen a specimen of A. fuscus with the transverse bands on the under parts regular and unbroken, as is commonly met with in the young female of A. nisus.

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Though we regard the law of priority as of great importance, we have in the case of this species continued Gmelin’s specific name fuscus, (1788,) though it had been previously used by Fabricius, (1780; see Hierofalco sacer in this synopsis.) We know of no practical benefit, however, that would now result from the alteration of this long established name, especially as the fuscus of Fabricius is a synonyme itself. Any naturalist, however, being so moved, may call this bird Accipiter dubius, if he chooses, and shall not be molested by us.

2. Accipiter Cooperii. (Bonaparte) Cooper’s Hawk.

Falco Cooperii. Bonap. Am. Orn. II. p. 1. (1828.)

Falco Stanleii. Aud. Orn. Biog. I. p. 186. (1831.)

Bonap. Am. Orn. pl. 1, fig. 1, young. Aud. B. of Am. pl. 36, 141, fig. 3; Oct. ed. I. pl. 24, adult and young.

Larger than the preceding; slender; wings short; tail rounded. Adult, head above brownish black, mixed with white on the occiput; other upper parts dark ashy brown, with the shafts of the feathers brownish black; an obscure rufous collar on the neck behind. Throat and under tail-coverts white, the former with lines of dark brown; other under parts transversely barred with light rufous and white; tail, dark cinereous, with four wide bands of brownish black, and tipped with white; quills ashy brown, with darker bands, and white marks on their inner webs. Young. Head and neck behind yellowish white tinged with rufous, and with longitudinal oblong stripes of brown; other upper parts light umber brown, with large partially concealed spots and bars of white; upper tail-coverts tipped with white; under parts white, with narrow longitudinal stripes of light brown; tail as in adult.

Dimensions. Female, total length 18 to 20 inches, wing 10 to 11, tail 8½; male, 16 to 17, wing 9½ to 10, tail 8 inches.

Hab. The entire territory of the United States. Chili, (Gay.)

Spec. in Mus. Acad. Philada.

Obs. Rather a difficult species to the ornithologist, on account of the great variations in its colors, and in size also. It is, in fact, unusual to find two alike in a dozen specimens. Very similar when adult to A. fuscus, but much larger. The adults of both sexes are the same in color. We have latterly suspected that the smaller specimens usually considered as young males of this bird, are really the young of the species next below, (A. Mexicanus.)

This bird is of frequent occurrence in the United States.

3. Accipiter Mexicanus. Swainson. The Mexican Black-capped Hawk.

Accipiter Mexicanus. Swains. Faun. Bor. Am. Birds p. 45, (1831,) not figured.

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Smaller than the preceding; tail long, rounded. Adult, head above black; other upper parts dark brownish black, with a tinge of cinereous, darkest on the back. Throat and under tail-coverts white; other under parts fine light rufous, deepest on the tibiæ, and barred and spotted with white nearly obsolete on the breast, sides and tibiæ, the longitudinal dark lines on the shafts of the feathers, (conspicuous in A. Cooperii,) barely discernible on the breast. Quills, dark brown, edged exteriorly with ashy, and with bands of darker brown and white on their inner webs; tail, dark cinereous, tipped with white, and with four bands of brownish black, that near the base of the tail obscure. Young, head and neck behind, and upper part of the back, dark rufous, striped with brownish black; other upper parts umber brown; under parts white, with longitudinal narrow stripes of brown; wings and tail as in adult; upper tail-coverts tipped with white. “Iris, carmine,” Dr. Gambel.

Dimensions. Total length, male, 15 inches, wing 9, tail 8 inches.

Hab. California (Dr. Gambel, Mr. Bell); Mexico (Mr. Pease); Eastern? Spec. in Mus. Acad. Philada.

Obs. Similar for the greater part, to A. Cooperii, but smaller, and with the tail and tarsi comparatively longer, and with the fine red of the under parts more uniform, the white stripes being nearly obsolete. Several specimens of both adults and young were brought in the fine collection made in California by Mr. J. G. Bell, of New York, and it was previously brought from the same country by Dr. Gambel, and from Mexico by Mr. Pease.

III. SUB-FAMILY BUTEONINÆ. THE BUZZARDS.

Bill short, strong, upper mandible curved, and with its edges festooned; wings long and broad; tail moderate, rather short; legs and feet moderate; toes rather short. General form heavy; flight vigorous, and capable of being long continued, but not so swift as in preceding sub-families. This group comprises about twenty-five species of all countries.

I. GENUS BUTEO. Cuvier, Reg. An., I. p. 323. (1817.)

PŒCILOPTERNIS. Kaup, Isis, 1847, p. 329.

Bill short, wide at base, edges of upper mandible festooned; nostrils large, ovate; wings long, wide, fourth and fifth quills usually longest; tail moderate, rather wide; tarsi rather long, and having transverse scales before and behind, but laterally small circular scales; toes moderate, rather short; claws strong. Comprises about twenty species, inhabiting all countries.

1. Buteo borealis. (Gmelin.) The Red-tailed Hawk. The American Buzzard.

Falco borealis, leverianus and jamaicensis. Gmelin, Syst. Nat., I. p. 266. (1788.)

Falco aquilinus. Bartram, Trav., p. 290. (1791.)

Buteo ferruginicaudus. Vieill., Ois. d’Am. Sept., I. p. 32. (1807.)

Accipiter ruficaudus. Vieill., Ois. d’Am. Sept., I. p. 43. (1807.)

Buteo fulvus and americanus. Vieill., Nouv. Dict., IV. pp. 472, 477. (1816.)

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Vieill., Ois. d’Am. Sept., I. pl. 6, 14; Wils., Am. Orn., VI. pl. 52, figs. 1, 2; Aud., B. of Am., pl. 51, oct. ed., I. pl. 7; Gosse, Ill. B. of Jamaica, pl. 2; Lembeye, B. of Cuba, pl. 1. fig. 1.

Adult. Tail bright rufous, narrowly tipped with white, and having a subterminal band of black. Entire upper parts dark umber-brown; lighter, and with fulvous edgings, on the head and neck; scapulars, with a generally concealed basal portion, white, with brown bands; upper tail-coverts generally yellowish white, but frequently on their inner webs of the same rufous as the tail, and with brown spots and bands. Throat white, with brown longitudinal stripes; other under-parts yellowish-white or fawn color, with many longitudinal lines and spots of reddish-brown, tinged with fulvous, most numerous on the breast, and an irregular band across the abdomen of oblong longitudinal spots and narrow transverse bars; under tail-coverts and tibiæ generally immaculate, but the latter frequently spotted, and transversely barred with light rufous. Under surface of the tail silvery white. Young. Tail, in many specimens, pale-brown, with numerous bands of a deeper shade of the same color, and tipped with white; upper tail-coverts white, banded more or less regularly with dark-brown; other upper parts dark umber-brown, many feathers narrowly edged with white and with partially concealed spots of white. Entire under-parts white, sides of the breast with large oval spots of brown, and a wide irregular band on the abdomen composed of similar spots of the same color; tibiæ and under tail-coverts with irregular bands and sagittate spots of brown.

Dimensions. Female—total length, 22 to 24 inches; wing, 15½ to 16; tail, 8½ inches. Male—19½ to 21 inches; wing, 14; tail, 7½ to 8 inches.

Hab. Eastern North America; Fur-countries (Richardson); Wisconsin (Hoy); Florida (Bartram); Jamaica (Gosse); Cuba (Lembeye).

Obs. One of the most common and easily recognized of the North American species. It is diffused throughout the eastern portion of the continent, but in the west appears to be replaced by the succeeding.

2. Buteo Swainsoni. Bonaparte, Comp. List, p. 3. (1838.) The Western Buzzard.

Buteo montana. Nutt., Man. Orn., I. p. 112. (1840.)

“Buteo vulgaris.” Rich. and Sw., Faun. Bor. Am. Birds, p. 47.

“Falco buteo. Linn.” Aud., Orn. Biog., IV. p. 508.

Faun. Bor. Am. Birds, pl. 27; Aud., B. of Am., pl. 372, oct. ed., I. pl. 6.

General form and appearance very similar to B. borealis, but rather larger, and with the wings longer; neck and upper part of the breast brown; tibiæ light rufous, with transverse bars of a deeper shade of the same. Tail bright rufous, narrowly tipped with white, and with a subterminal band of black; upper tail-coverts rufous and white; entire other upper parts dark umber-brown, with partially concealed ashy-white and pale fulvous bands and spots on the scapulars and shorter quills. Lower breast white, tinged and with irregular transverse bands of pale-rufous; abdomen with a broad irregular transverse band composed of longitudinal lines and oblong spots of brown, and tinged with rufous. This abdominal band nearly obsolete in some specimens. Under tail-coverts yellowish-white; under surface of the tail silvery-white, with a reddish shade.

Young. Upper parts dark-brown, edged and spotted with white tinged with rufous; tail above ashy-brown, with dark-brown bands, and tipped with white. Under parts white, on the sides and abdomen with large oblong spots of brown; tibiæ and under tail-coverts white, with transverse bars and large spots of brown.

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Dimensions. Female—total length, 23 to 26 inches; wing, 16½ to 17; tail, 9 to 10 inches. Male—smaller.

Hab. Northern and western regions—Rocky Mountains and Oregon (Dr. Townsend); California (Mr. Bell); Wisconsin (Dr. Roy); Mexico (Rivoli collection).

Obs. Nearly related to B. borealis, and much resembling it. We have never seen, however, specimens of the latter with the brown space on the neck and breast so extensive as in specimens of the present species brought from California by Mr. Bell, nor with the transverse bars on the abdomen, as is usual in this species, and as represented in the plate in Fauna Boreali Americana. It is brought frequently in collections from Western America; and the young may be Buteo ventralis. Gould.

3. Buteo lineatus. (Gmelin.) The Red-shouldered Hawk. The Winter Falcon.

Falco lineatus and hyemalis. Gm., Syst. Nat., I. pp. 268, 274. (1788.)

Falco buteoides. Nutt., Man., I. p. 100. (1st edition, 1832.)

Vieill., Ois. d’Am. Sept., pl. 5; Wils., Am. Orn., pl. 53, fig. 3; Aud., B. of Am., pl. 56, 71, oct. ed., I. pl. 9; Nat. Hist. N. Y., pl. 6, fig. 13.

Smaller than the preceding. Adult. Wing-coverts, from its flexure to the body, fine bright rufous; breast and other inferior parts paler rufous; many feathers with narrow lines of black on their shafts, and spotted and barred transversely with white; the latter color predominating on the under tail-coverts. Entire upper-parts brown; on the head and neck much mixed with rufous, and with white spots on the wing-coverts and shorter quills and rump; quills brownish-black, spotted with white on their outer webs, and with bars of a lighter shade of the same color and of white on their inner webs; tail brownish-black, with about five transverse bands of white, and tipped with white. Younger. Under parts with large sagittate spots and wide bars of rufous, tinged with brown. Young. Entire under-parts yellowish-white, with longitudinal stripes and oblong spots of brown; throat brown; upper parts brown, with partially concealed spots and bars of white; quills dark-brown, with wide bars of rufous, and white on both webs; tail brown, with many bands of pale brownish and rufous-white; tail beneath silvery-white.

Dimensions. Female—total length, 22 to 24 inches; wing, 14; tail, 9 inches. Male—total length, 18 to 20 inches; wing, 11½ to 12; tail, 8 inches.

Hab. North America; Oregon (Townsend); California (Heermann); Wisconsin (Hoy); South Carolina (Gibbes).

Obs. An abundant and rather difficult species to the student. The young bird, which is Falco hyemalis Gm., is the more usually met with, and bears very little resemblance to the adult.

4. Buteo Bairdii. Hoy, Proc. Acad. Philada., VI. p. 451. (1853.)

Female. Rather smaller than B. lineatus; wings long and pointed; third primary longest; tail moderate, rounded. Entire upper-parts dark brown, with a purplish-bronze lustre, especially on the primaries; plumage of the head and neck behind, and some feathers on the back, edged and tipped with yellowish-white; upper tail-coverts yellowish-white, with transverse bars of brown. Tail above brownish-cinereous, and having about ten narrow 100 bands of brownish-black, and tipped with white. Under parts pale yellowish-white, or fawn color, with a few sagittate spots of brown on the sides, and a stripe of brown running downwards from the corner of the mouth. Forehead white; under wing-coverts yellowish-white. Cere, legs, and irides, yellow.

Younger? Upper parts very dark-brown, or nearly black, with purplish lustre. Under parts with almost every feather having a large spot of brownish-black, which color predominates on the breast, so as to present a nearly uniform color with the upper parts; throat with narrow stripes of the same color. Flanks and inferior wing-coverts with circular and oval spots of white. Tibiæ dark-brown, with transverse bars and circular and oval spots of reddish-white. Upper tail-coverts reddish-white, with their outer edges brown, and with transverse stripes of the same. Under tail-coverts yellowish-white, with transverse stripes of brown. Forehead white; cheeks yellowish-white. Stripes from the corners of the mouth wide and conspicuous. Sex unknown.

Dimensions. Female—total length (of skin), 19½ inches; wing, 15; tail, 8 inches, and about an inch longer than the folded wings.

Hab. Wisconsin. Spec. in Mus. Acad. Philada.

Obs. This is a well-marked species, especially in the stage of plumage described above as probably the younger, in which the nearly uniformly brownish-black breast and large spots of the same color on the other under-parts, are striking characters. The first-described plumage resembles that of B. pennsylvanicus. We have seen only the two specimens now described, both of which are from the State of Wisconsin.

5. Buteo pennsylvanicus. (Wilson.) The Broad-winged Hawk.

Falco pennsylvanicus. Wils., Am. Orn., VI. p. 92. (1812.)

Falco latissimus. Wils., Am. Orn., VI. p. 92. (1812. Copies printed later than those containing the preceding name.)

Sparvius platypterus. Vieill., Ency. Meth., III. p. 1273. (1823.)

Falco Wilsonii. Bonap., Jour. Acad. Philada., III. p. 348. (1824.)

Wils., Am. Orn., VI. pl. 54, fig. 1; Aud., B. of Am., pl. 91, oct. ed. I. pl. 10; Nat. Hist. N. Y. Orn., pl. 5, fig. 11.

Smaller than either of the preceding. Adult. Entire upper-parts dark umber-brown; feathers on the back of the neck white at their bases. Throat white, with narrow longitudinal lines of brown, and with a patch of brown on each side, running from the base of the lower mandible; breast with a wide band composed of large cordate and sagittate spots and transverse stripes of reddish-ferruginous tinged with ashy; other under-parts white, with numerous sagittate spots disposed to form transverse bands on the lower part of the breast, flanks, abdomen, and tibiæ. In some specimens, in winter plumage, the ferruginous color predominates on all the under parts, except the under tail-coverts, and all the feathers have large circular spots on each edge; under tail-coverts white. Tail dark-brown, narrowly tipped with white, and with one broad band of white and several other narrower bands nearer the base. Quills brownish-black, widely bordered with pure white on their inner webs. Young. Plumage above umber-brown, edged on the head and back of the neck with fulvous, and with many feathers on other upper-parts edged with the same color and ashy-white; upper tail-coverts spotted with pure white. Under-parts white, generally tinged with yellowish, many feathers having oblong and lanceolate longitudinal stripes and spots of brown; a stripe of brown on each side of the neck from the base of the under mandible. Tail brown, with several bands of a darker shade of the same and of white on the inner webs of the feathers and narrowly tipped with white.

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Dimensions. Female—total length, 17 to 18 inches; wing, 11; tail, 6½ to 7 inches. Male—smaller.

Hab. Eastern North America; Florida (Abadie); Long Island (Giraud); Wisconsin (Hoy). Spec. in Mus. Acad. Philada.

Obs. This handsome little species is of rather unusual occurrence in the middle and southern States, though according to Dr. Hoy it is abundant in Wisconsin. It is an easily recognized species, though presenting considerable variations in color, according to age and season.

The names Falco pennsylvanicus and Falco latissimus occur in different copies of the sixth volume of the original edition of Wilson (1812), and the probability is that the latter was substituted by the author, in the later printed copies, after he had noticed that he had previously applied the name pennsylvanicus to another species. Of the last three volumes only second editions were published under the editorship of Mr. Ord; the seventh and eighth in 1824, and the ninth in 1825. The statement in Hall’s edition, I. p. 92 (Philadelphia, 1828), that the name latissimus was given by Mr. Ord, is therefore incorrect. That gentleman, now President of the Philadelphia Academy, and of whose advice and instruction we have the great advantage and gratification, informs us that he had nothing to do with either of the names to which we here allude.

6. Buteo Harlani. (Aud.) Harlan’s Buzzard. The Black Warrior.

Falco Harlani. Audubon, Orn. Biog., I. p. 441. (1831. Plate pub. 1830)

“Buteo borealis.” Gray, Catalogue of Birds in British Museum, Accipitres, p. 34.

Buteo albonotatus. Gray, Cat. Brit. Mus., Accipitres, p. 36; Kaup, Isis, 1847, pp. 329, 369?

Aud., B. of Am., pl. 86, oct. ed. I. pl. 8.

“Head very large; neck short; body robust. Feet of ordinary length; tarsus a little compressed, scutellate before and behind, reticularly scaly on the sides; toes scutellate above, scaly on the sides, tubercular and scabrous beneath; claws curved, roundish, very acute. Plumage compact; feathers of the head and neck short and rounded; tibial feathers elongated, and loose at the tips. Wings long; first quill short, third and fifth equal; first primaries cut out on the inner web towards the end. Tail longish, ample, of twelve broad, rounded feathers. Bill light-blue, black towards the end; cere and angles of the mouth yellowish-green. Iris light yellowish-brown. Feet dull greenish yellow; claws black.

“The general color of the plumage is deep chocolate-brown; the under-parts lighter, the feathers there being margined with light-brown. Tail lighter than the back, and rather narrowly barred with brownish-black, the tips brownish-red. Under wing-coverts whitish, spotted with deep-brown. Length, 21 inches; extent of wings, 45; bill, along the back, 1½; along the gap, from the tip of the lower mandible, 1½; tarsus, 1¾.” (Aud., as above.)

Adult? Brownish-black, with a purplish lustre; occipital feathers white at base, and a few white feathers in front at the base of the bill. Under wing-coverts black, with circular 102 spots and irregular bars of white. Quills white on their inner webs for about two-thirds of their length, and transversely barred with pale ashy-brown. Tail above brownish black, tinged with ashy, and with about six to eight bars of black, the widest of which is next to the tip, which is white. Inner webs of the tail-feathers, except the two in the middle, white, mottled with ashy, and with the transverse bars conspicuous; tail beneath ashy-white. Plumage of the back and entire under-parts of the body white at base, and having concealed pairs of circular and oval spots of white most obvious on the abdomen and under tail-coverts. Bill and legs light-colored.

Dimensions. Total length (of skin), 20 inches; wing, 16½; tail, 9½ inches.

Hab. Louisiana (Audubon); Mexico? Spec. in Mus. Acad. Philada.

Obs. The only bird that we have ever seen which appeared to be this species is that described above as probably the adult. It is one of two or three species of black Buzzards which inhabit Mexico and Central America, and we suspect it of being identical with B. albonotatus (Gray, as above), though of that species there is no sufficient description published.

7. Buteo insignatus. Cassin. New species. (March, 1854.) The Canada Buzzard.

Form robust; wings rather long, third quill longest, secondaries emarginate at their tips; quills unusually broad; tail rather short, slightly rounded; tarsi feathered in front below the joint, naked behind, and having in front about ten transverse scales. Under wing-coverts and under tail-coverts white, the former striped longitudinally with pale-ferruginous, and some of them transversely with dark-brown, the latter with transverse stripes of pale reddish-brown. Plumage of the tibiæ dark-ferruginous mixed with brown. Throat and a few feathers in front white, with narrow lines of black. Entire other plumage above and below dark-brown, nearly every feather having a darker or nearly black line on its shaft. Quills above brown, with a purple lustre, beneath pale-ashy, with their shafts white, and irregularly barred with white near their bases. Tail above dark-brown, with an ashy or hoary tinge, and having about ten obscure bands of a darker shade of the same color, beneath nearly white, with conspicuous bands of brown, the widest of which is next to the tip, which is paler. Tarsi and feet yellow. Sex unknown.

Dimensions. Total length (of skin), 17 inches; wing, 14½; tail, 7½ inches.

Hab. Canada (Dr. M’Culloch). Spec. in Mus. Nat. Hist. Soc. of Montreal, Canada.

Obs. Of this very remarkable little Buzzard one specimen only has come under our notice, and is that above described. It belongs to the collection of the Natural History Society of Montreal, by whom it was most kindly sent to Philadelphia for examination at our request, through the good offices of M. M’Culloch, M. D., a distinguished physician and naturalist of that city.

In color, though a true Buteo, this bird differs from any known American species, and more resembles in that respect some stages of the young plumage of Circus hudsonius or C. æruginosus. It was captured in the vicinity of Montreal.

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II. GENUS ARCHIBUTEO. Brehm, Isis, 1828, p. 1269. TRIORCHIS. Kaup, Syst. Eur. Thier., p. 84. (1829.) BUTAETES. Less., Traité, p. 83. (1831.)

General characters very similar to those of Buteo, but with the tarsus densely feathered to the base of the toes, but more or less naked on the hind part. Toes short; claws moderate; wings rather long. Contains about six species, of both continents.

1. Archibuteo sancti-johannis. (Gmelin.) The Black Hawk. The Rough-legged Buzzard.

Falco sancti-johannis and NOVÆ-TERRÆ. Gm., Syst. Nat., I. pp. 273, 274. (1788.)

Falco niger. Wils., Am. Orn., VI. p. 82. (1812.)

Buteo ater. Vieill., Nouv. Dict., IV. p. 482. (1816.)

Falco spadiceus. Gm., Syst. Nat., I. p. 273?

Wilson, Am. Orn., VI. pl. 53, figs. 1, 2; Faun. Bor. Am., Birds, pl. 28; Aud., B. of Am., pl. 422, oct. ed. I. pl. 11.

Large, and rather heavy; wings long; tarsi feathered, a narrow space naked behind; toes naked, and rather short. Adult. Entire plumage glossy black, in many specimens with a brown tinge; forehead, throat, and a large space on the head behind, mixed with white. Tail with one well-defined band of white, and irregularly marked towards the base with the same color. Quills with their inner webs white, most readily seen on the under-surface of the wing. Some specimens have several well-defined bands of white in the tail. Others have the entire plumage dark chocolate-brown, with the head more or less striped with yellowish-white and reddish-yellow. Cere and legs yellow.

Younger. Upper-parts light umber-brown, with the feathers more or less edged with yellowish-white and reddish-yellow; abdomen with a broad transverse band of brownish-black; other under-parts pale yellowish-white, longitudinally striped on the neck and breast with brownish-black; wings and tail brown, tinged with cinereous; quills for the greater part of their length white on their inner webs; tail-feathers white at their bases. Plumage of the tibiæ and tarsi pale reddish-yellow, spotted with brown. Other specimens have the throat and breast with the black color predominating.

Young male? Entire upper-parts light ashy-brown, more or less mixed with white, especially on the head and fulvous; under-parts yellowish white and dark-brown, the latter assuming the form of longitudinal stripes on the breast, and narrow transverse stripes on the abdomen; tarsi and tibiæ dark-brown, striped with dull-white and reddish; greater part of quills and tail white. Cere and legs yellow.

Dimensions. Total length, female, 22 to 24 inches; wing, 17 to 17½; tail, 9 inches. Male—total length, about 20 to 21 inches; wing, 16 to 16½; tail, 8 to 8½ inches.

Hab. Entire North America; Oregon (Townsend). Spec. in Mus. Acad. Philada.

Obs. This is one of the most abundant of the birds of this family, in all the States on the Atlantic, and is one of the most variable in plumage. Two stages of plumage—the adult black bird and the young, when the wide abdominal band of black is well defined—are easily recognized; but there are a variety of other plumages which are difficult to refer to their proper age, sex, 104 or season. Although the stage of plumage described above as perhaps that of the young male (figured by Wilson, pl. 53, fig. 2, and Aud., pl. 422, fig. 2) may be correct, we regard it as by no means established, and in fact are inclined to suspect that there are two distinct species confounded.

2. Archibuteo lagopus. (Gm.) The Rough-legged Buzzard.

Falco lagopus. Gmelin, Syst. Nat., I. p. 260. (1788.)

Wils., Am. Orn., IV. pl. 33, fig. 1; Aud., B. of Am., pl. 166; Gould, B. of Eur., I. pl. 15.

Very similar in general form to the preceding. Above light umber-brown; many feathers, especially of the head and neck behind, edged with yellowish white and fulvous. A wide transverse band or belt on the abdomen brownish-black; other under-parts yellowish-white, with a few longitudinal lines and spots of brownish-black; quills ashy-brown, with a large basal portion of their inner webs white; tail at its base white, which is also the color of the greater part of the inner webs of its feathers almost to the tip; terminal portion light umber-brown; tip white. Plumage of the tibiæ and tarsi pale reddish-yellow, striped longitudinally with brown.

Dimensions. Female—total length, 21 to 23 inches; wing, 16 to 17; tail, 9 inches. Male—smaller.

Hab. All of North America; Europe; California (Mr. Bell); Wisconsin (Dr. Hoy). Spec. in Mus. Acad. Philada.

Obs. The bird here inserted as identical with the European Archibuteo lagopus has been usually regarded, by late naturalists, as the young of the species immediately preceding. Such may be the truth of the case, and our only reason for giving it thus is, that after careful comparison and examination of numerous specimens, we find it absolutely impossible to distinguish it, by any character whatever, from the European bird. Whether two birds can be exactly the same in all their characters, so far as presented by specimens, and yet be distinct in species, is a question that we are not prepared at present practically to decide. We regard it as quite possible, however, that the present may be the young of A. sancti-johannis. It is one of the most common species of its family. Mr. Bell’s specimens from California are, so far as we can see, exactly the same as the European bird, differing from eastern specimens only in very unimportant characters.

3. Archibuteo ferrugineus. (Licht.) The Western Rough-legged Buzzard,

Buteo ferrugineus. Lichtenstein, Trans. Berlin Acad., 1838, p. 428.

Archibuteo regalis. Gray, Genera of Birds. I. pl. 6. (1849, plate only.)

Larger than either of the two preceding. Bill wide at base; wings long; tarsi feathered in front to the toes, naked and scaled behind. Adult. Tibiæ and tarsi bright ferruginous, with transverse stripes of black, irregular and indistinct on the latter. Entire upper-parts striped longitudinally with dark-brown and light-rufous, the latter color predominating on the rump and lesser wing-coverts. Quills ashy-brown, lighter on their outer webs, and with the greater part of their inner webs white; tail above reddish-white, mottled with ashy-brown; tail beneath pure yellowish-white. Under-parts of the body white, 105 with narrow longitudinal lines and dashes on the breast of reddish-brown and narrow irregular transverse lines of the same color, and black on the abdomen; flanks and axillary feathers (under the wing) fine bright-ferruginous.

Young. Entire upper-parts dark umber-brown, very slightly mixed with fulvous; upper tail-coverts white, spotted with brown; entire under-parts pure white, with a few narrow longitudinal lines and dashes of brown on the breast, and arrow-heads of the same color on the sides and abdomen, larger and more numerous on the flanks; tibiæ white; tarsi dark-brown, mixed with white; under wing-coverts and edges of wings white.

Dimensions. Female—total length, about 23 to 25 inches; wing, 17 to 17½; tail, 9 inches. Young—smaller.

Hab. California (Mr. E. M. Kern); Sacramento valley (Dr. Heermann). Spec. in Mus. Acad., Philada.

Obs. This is one of the handsomest of the American Falconidæ. It is also one of the largest of the Buzzards, and easily distinguished from the preceding species. Of the recent American travellers, Mr. E. M. Kern was the first who brought home this fine species; since which adults, young birds, and eggs, have been collected by Dr. Heermann. It is not rare in California.

IV. SUB-FAMILY MILVINÆ. THE KITES.

Size various, usually medium or small. Bill short, weak, hooked, and acute; wings and tail usually long; tarsi and feet slender, frequently short. The birds of this sub-family habitually feed on reptiles and other small animals, and are deficient in the strength and courage of those of the other sub-families. About thirty-five species of all countries belong to this group.

I. GENUS NAUCLERUS. Vigors, Zool. Jour., II. p. 386. (1825.)

CHELIDOPTERYX. Kaup, Class., p. 112. (1844.)

Bill short and weak; wings and tail very long, the former pointed, the latter deeply forked. Tarsi very short; toes short. Contains not more than three species, two of which are American, and the other African.

1. Nauclerus furcatus. (Linn.) The Swallow-tailed Hawk.

Falco furcatus. Linn., Syst. Nat., I. p. 129. (1766.)

Cat. Car, pl. 4; Buff., Pl. Enl., 72; Wilson, Am. Orn., VI., pl. 51, fig. 3; Aud., B. of Am., pl. 72, oct. ed. I. pl. 18; Gould, B. of Eur., 1. pl. 30; De Kay, Nat. Hist. N. Y., Birds, pl. 7, fig. 15.

Wings and tail long, the latter deeply forked. Head and neck, inferior wing-coverts, secondary quills at their bases, and entire under-parts, white. Back, wings, and tail, black, with a metallic lustre, purple on the back and lesser wing-coverts, green and blue on other parts. Tarsi and feet greenish-blue; bill horn color.

Dimensions. Female—total length, 23 to 25 inches; wing, 16 to 17½; tail, 14 inches. Male—rather smaller.

Hab. Southern States on the Atlantic, and centrally northward to Wisconsin; Texas (Mr. Audubon); South Carolina (Prof. Gibbes); Wisconsin (Dr. Hoy); Pennsylvania (Mr. A. F. Darley); Jamaica (Mr. Gosse). Accidental in Europe. Spec. in Mus. Acad., Philada.

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Obs. This very handsome Hawk is especially abundant in the Southern States. It cannot readily be confounded with any other North American species, though we have not been able to compare it with the Elanoides yetapa, Vieill., of South America, with which it is either identical or very similar.

II. GENUS ELANUS. Savigny, Nat. Hist. Egypt, I., 97. (1809.)

Bill short, compressed, hooked; wings long, pointed; tail moderate, generally emarginate; tarsi short. Contains four species only, much resembling each other; one of which is American, one African, and two Australian.

1. Elanus leucurus. (Vieill.) The Black-shouldered Hawk. The White-tailed Hawk.

Milvus leucurus. Vieill., Nouv. Dict., XX. p. 563. (1818.)

Falco dispar. Temm., Pl. Col., I. (Liv. 54, about 1824.)

“Falco melanopterus. Daud.” Bonap., Jour. Acad. Philada., V. p. 28.

“Falco dispar. Temm.” Aud., Orn. Biog., IV. p. 367.

Bonap., Am. Orn., II. pl. 11, fig. 1; Temm., Pl. col. 319; Aud., B. of Am., pl. 352, oct. ed. I. pl. 16. Gay’s Chili Orn., pl. 2.

Head above, entire under-parts, and tail, white, the middle-feathers of the latter usually tinged above with ashy, and the head posteriorly tinged with the same color, which gradually shades into a fine light-cinereous, which is the color of the upper-parts of the body, quills, and greater wing-coverts. Lesser wing-coverts glossy black, which forms a large oblong patch; inferior wing-coverts white, with a smaller black patch. Bill dark; tarsi and feet yellow.

Dimensions. Female—total length, 15½ to 17 inches; wing, 12; tail, 7½ inches. Male—smaller.

Hab. Southern States; California (Dr. Heermann); South Carolina (Prof. Gibbes); Chili (Lieut. Gillis). Spec. in Mus. Acad., Philada.

Obs. An abundant species in the Southern and South-western States. It is larger than the African E. melanopterus, with which it has been confounded, but considerably resembling it and the Australian species in form and general characters.

III. GENUS ICTINIA. Vieill., Analyse, p. 24. (1816.)

NERTUS. Boie, Isis, 1828, p. 314. PŒCILOPTERYX. Kaup, Class., p. 112. (1844.)

Bill short, tip emarginated; wings long, pointed; tail rather short; usually emarginated; tarsi short. Two American species constitute this genus.

1. Ictinia mississippiensis. (Wilson.) The Mississippi Kite.

Falco mississippiensis. Wilson, Am. Orn., III. p. 80. (1811.)

Falco ophiophagus. Vieill., Nouv. Dict., XI. p. 103. (1817.)

“Ictinia plumbea. Gm.” Aud., Orn. Biog., II. p. 108.

Vieill., Gal., I. pl. 17; Wilson, Am. Orn., III. pl. 25, fig. 1; Aud., B. of Am. pl. 117, oct. ed. I. pl. 17.

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Head, exposed ends of secondary quills, and entire under-parts, light-cinereous, palest and nearly white on the tips of the secondaries. Back, wing-coverts, and rump dark lead-color; primaries and tail brownish-black, the latter with a tinge of bluish. Bill dark; tarsi and feet lighter.

Dimensions. Total length, female, about 15 inches; wing, 11 to 11½; tail, 6½ inches. Male—smaller.

Hab. Southern States; Texas (Mr. Audubon); South Carolina (Prof. Gibbes). Spec. in Mus. Acad., Philada.

Obs. This bird is quite different from the South American I. plumbea, for which it has been mistaken by American naturalists; in fact, it is so little like it, that a comparison of specimens of the two species would render a suspicion of their identity quite impossible.

IV. GENUS ROSTRHAMUS. Lesson, Traité d’Orn., I. p. 55. (1831.)

Bill long, very slender, hooked, and sharp at the tip; wings long, pointed; tail rather long, emarginate; tarsi and toes rather long; claws very long, slender, acute. The present is the only species.

1. Rostrhamus sociabilis. (Vieill.) The Hooked-billed Hawk.

Herpetotheres sociabilis. Vieill., Nouv. Dict., XVIII. p. 318. (1817.)

Cymindis leucopygius. Spix, Av. Bras., I. p. 7. (1824.)

Rostrhamus niger. Less., Traité, I. p. 56. (1831.)

“Falco hamatus. Illiger.” Lesson, as above.

Temm., Pl. col. I. 61, 231; Spix, Av. Bras., I. pl. 2; Guerin, Mag. de Zool., 1834, pl. 20.

Adult. Tail at base, and under tail-coverts, white; all other parts black. Naked space before the eye yellow, which is also the color of the feet; bill and claws black. Tail usually tipped with pale-cinereous. Younger. Throat and line over and behind the eye yellowish-white; general plumage brownish-black, mixed with yellowish-white on the under-parts of the body. Young. Forehead—stripe behind the eye and throat reddish or ferruginous-white; upper-parts brown, many feathers edged with pale-ferruginous; under-parts yellowish, with longitudinal stripes of black; tail at tip and base, and under tail-coverts, yellowish-white. Legs yellowish-green.

Dimensions. Female—total length (of skin), 16 inches; wing, 14; tail, 7½ inches. Male—smaller.

Hab. Florida (Mr. Harris, Dr. Heermann). Spec. in Mus. Acad., Philada.

Obs. This bird is remarkable for its slender and hooked bill, unlike that of any other Falcon. It is well known as a South American bird, and was first noticed in Florida by Mr. Edward Harris; subsequently by Dr. Heermann. Both these gentlemen having obtained specimens of young birds, it is probably a constant resident of that State.

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V. GENUS CIRCUS. Lacepede, Mem. d’Inst., III. p. 506. (1803.)

STRIGICEPS. Bonap., Comp. List., p. 5. (1838.)

Size medium; head rather large; face partially encircled by a ring or ruff of short projecting feathers (as in the Owls). Bill rather short, compressed, curved from the base; nostrils large; wings long, pointed; tail long, wide; tarsi long and slender, compressed; toes moderate; claws long, rather slender. Embraces about fifteen species, of all parts of the world.

1. Circus hudsonius. (Linn.) The Marsh Hawk. The Harrier.

Falco hudsonius. Linn., Syst. Nat., I. p. 128. (1766.)

Falco uliginosus. Gm., Syst. Nat., I. p. 278. (1788.)

Falco europogistus. Daudin, Traité, II. p. 110. (1800.)

“Falco uliginosus.” Wilson, Am. Orn., VI. p. 67.

“Falco cyaneus. Linn.” Aud., Orn. Biog., IV. p. 396.

Edw., Birds, VI. pl. 291; Vieill., Ois. d’Am., pl. 9; Wilson, Am. Orn., VI. pl. 51, fig. 2; Bonap., Am. Orn., II. pl. 12; Aud., B. of Am., pl. 356, oct. ed. I. pl. 26; Faun. Bor. Am., Birds, pl. 29; De Kay, Nat. Hist. N. Y. Orn., pl. 3, figs. 6, 7.

Form slender; tarsi long; ruff very distinct on the neck in front. Adult. Upper-parts, head, and breast, pale grayish-cinereous, generally more or less tinged with fuscous, and on the back of the head mixed with dark fulvous; upper tail-coverts white. Under-parts white, usually with many small cordate or hastate spots of light-ferruginous; quills brownish-black, with their outer webs tinged with ashy, and a large portion of their inner webs white; tail light-cinereous, nearly white on the inner webs of the feathers, and with obscure bands of brown; under-surface white; inferior wing-coverts white; secondaries tipped with dark-brown. Young. Entire upper-parts dark umber-brown, mixed with fulvous, and white on the occiput and neck behind; upper tail-coverts white. Tail reddish-brown, with about three broad bands of dark-fulvous, paler on their inner webs. Under-parts rufous, with stripes of brown on the breast and sides; tarsi and feet yellow. In younger birds, on the under-parts the brown stripes are more numerous.

Dimensions. Female—total length, 19½ to 21 inches; wing, 15½; tail, 10 inches. Male—total length, 16 to 18 inches; wing, about 14; tail 8½ to 9 inches.

Hab. All of North America; California (Col. M‘Call); Oregon (U. S. Ex. Exp. Vincennes); Cuba (M. de Sagra, M. Lembeye). Spec. in Mus. Acad., Philada.

Obs. Resembles to some extent the Circus cyaneus of Europe, but is easily distinguished from it by its colors and rather larger size. The adults and young of this species present great differences in color and general appearance.

V. SUB-FAMILY AQUILINÆ. THE EAGLES.

Size usually large. Bill large, compressed, straight at base, curved and acute at the tip; wings long, pointed; tail ample, generally rounded at the end; tarsi moderate or rather long, strong; toes long, strong; claws very strong, curved, acute. This sub-family includes about seventy species, of all countries.

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I. GENUS AQUILA. Mœhring, Av. Gen. p. 49. (1752.)

Large, bill large, strong, compressed, and hooked at the tip; wing long, pointed, very strong; tarsi moderate, feathered to the base of the toes. Tail rather long, rounded or wedge-shaped; toes and claws long; the latter very sharp and curved. Contains about twenty species, which are regarded as the true Eagles.

1. Aquila chrysaetos. (Linn.) The Golden Eagle. The ring-tailed Eagle.

Falco chrysaetos and fulvus. Linn., Syst. Nat., I. p. 125. (1766.)

Falco canadensis. Linn., Syst. Nat., I. p. 125. (1766.)

Aquila nobilis. Pallas, Zoog. Ross. As., I. p. 338. (1811.)

Falco niger. Gm., Syst. Nat., I. p. 259. (1788.)?

Edw., Birds, pl. 1; Brown, Ill., pl. 2; Buff. Pl. Enl. 409, 410; Wils. Am. Orn., pl. 55, fig. 1; Aud. B. of Am., pl. 181; oct. ed. 1, pl. 12.

Very large; tarsi densely feathered to the toes. Adult. Head above and behind and neck behind light-brownish fulvous, much varying in shade in different specimens. Base of the tail pure white, which color varies in extent in different specimens, but generally occupies the greater part of the tail; remaining portion glossy black. All other parts rich purplish-brown, very dark, and nearly black on the under-surface. Primary quills shining black, secondaries purplish-brown, with a violet tinge; tibia and tarsi brownish-fulvous, tinged with ashy; toes yellow. Younger. Entire plumage mixed with fulvous, and with the under-surface of the body paler.

Dimensions. Female—total length, 33 to 40 inches; wing, about 25; tail, about 15 inches. Male—smaller.

Hab. Whole of North America; Oregon (Dr. Townsend). Spec. in Mus. Acad., Philada.

Obs. We are not without doubts as to the specific identity of the American and the European Golden Eagles. All the American specimens that we have examined are smaller, the bill shorter, and the plumage much darker than those of Europe. We have not at present, however, a sufficient number of either continent, and it unfortunately happens that nearly all our European specimens are young birds, while the American are adults. Mr. Audubon’s plate represents this bird in nearly mature plumage.

II. GENUS HALIAETUS. Savigny, Hist. Nat. d’Egypt, I. p. 85. (1809.)

Size large; tarsi short, naked, or feathered for a short distance below the joint of the tibia and tarsi, and with the toes covered with scales. Bill large, strong, compressed; margin of upper mandible slightly festooned; wings rather long-pointed; tail moderate; toes rather long; claws very strong, curved, sharp. This genus contains about ten species of all parts of the world, all of which prey more or less on fishes, and are known as Fishing or Sea Eagles.

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1. Haliaetus pelagicus. (Pallas.) The Northern Sea Eagle.

Aquila pelagica. Pallas, Zoog. Rosso-Asiat., I. p. 343. (1811.)

“Aquila marina. Steller, MSS.” Pallas as above.

Falco imperator. Kittlitz., Kupf. Nat. Vog., pt. I. p. 3. (1832.)

Falco leucopterus. Temm., Pl. col. 1. p. (no page.)

Kittlitz Kupf., pl. 2; Temm., Pl. col. I., pl. 489. Cassin. B. of California and Texas, I., pl. 6.

The largest of the Eagles. Wings rather shorter than usual in this genus; tail wedge-shaped, and composed of fourteen feathers. Adult. Large frontal space, greater wing-coverts, abdomen and tail white; all other parts of the plumage dark brown or brownish-black; bill and legs yellow. Younger. Tail white, more or less marked with brownish-black. All other parts brownish-black, lighter on the head and neck. Quills black, secondaries and tertiaries white at their bases; bill and feet yellow.

Dimensions. Female—total length, 3 feet 8 inches; wing, 2 feet 2 in.; tail, 1 foot 4 inches.

Hab. Russian-American Islands (Pallas); Japan (Temminck & Schegel). Spec. in Mus. Acad., Philada.

Obs. This very large and powerful bird inhabits north-eastern Asia and the islands between that continent and America, and probably other parts of Russian-America. It is the largest of the Eagles, and appears to be related to the species immediately succeeding.

2. Haliaetus Washingtonii. (Aud.) The Washington Eagle.

Falco Washingtonii. Aud. Orn. Biog., I. p. 58. (1831, plate pub. 1827)

Falco Washingtoniana. Aud. Louden’s Mag., I. p. 115. (April, 1828)

Aud. B. of Am. pl. 11; oct. ed. I., pl. 13.

Large, “bill shortish, very deep, compressed; feet rather short, with the leg long; the tarsus short, rounded, anteriorly covered with transversely-narrow sentella, posteriorly with small tuberculous scales; feathers of the head, neck and breast narrow and pointed; wings long, second quill longest; tail of ordinary length, rounded, extending considerably beyond the tips of the wings, of twelve broad acute feathers.”

“Bill bluish-black, the edges pale, the soft margin towards the commissure, and the base of the under-mandible yellow; cere yellowish-brown; lore light greenish-blue; iris chestnut-brown; feet deep yellow; claws brownish-black; upper part of the head, hind neck, back, scapulars, rump, tail-coverts and posterior tibial feathers blackish-brown, glossed with a coppery tint; throat, fore-neck, breast and belly light brownish-yellow, each feather marked along the centre with blackish-brown; wing-coverts light grayish-brown, those next the body becoming darker and approaching the color of the back; primary quills dark-brown, deeper on their inner-webs; secondaries lighter, and on their outer-webs of nearly the same tint as their coverts; tail uniform dark-brown; anterior tibial feathers grayish-brown.”

Dimensions. “Length, 3 feet 7 inches; extent of wings, 10 feet 2 inches; bill, 3¼ inches along the back; along the gap which commences directly under the eye to the tip of the lower mandible, 3¼ and 1¾ deep; length of wing when folded, 32 inches; length of tail, 15 inches; tarsus, 4½; middle toe, 4¾; hind claw, 2½ inches.” Audubon as above.

Hab. Kentucky (Audubon); Western and Eastern? Spec. in Mus. Acad., Philada.?

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Obs. The above description we regard as that of the young bird, and consider the adult as yet unknown. No specimen precisely corresponding to Mr. Audubon’s bird, has been obtained since its discovery, and it has latterly been looked upon by Naturalists, especially in Europe, as an unusually large specimen of the young white-headed Eagle. It is probably a western species, and would be readily recognized by the transverse scutellæ of the tarsi which are continued to the base of the toes.

3. Haliaetus albicilla. (Linn.) The Gray Sea Eagle. The European Sea Eagle.

Vultur albicilla. Linn., Syst. Nat., I. p. 123. (1766.)

Falco ossifraga et melanaetos. Linn., Syst. Nat., I. p. 124. (1766.)

Haliaetus grœnlandicus. Brehm, Vog. Deuts., I. p. 16. (1831.)

Buff., Pl. Enl., 112, 415; Selby, Ill. Brit. Orn., pl. 3; Gould, B. of Eur., I. pl. 10.

Large, bill large, much hooked; wings long; tail moderate. Adult. Tail white; head and neck pale yellowish-brown, in some specimens very light; all other parts of the plumage dark umber-brown; quills nearly black; bill, feet and irides yellow. Younger. Bill brownish-black; irides brown; entire plumage dark-brown, with the tail mottled with white, much varying in extent; throat paler, and in some specimens nearly white.

Dimensions. Female—total length, about 3 feet to 40 inches; wing, 2 feet 3 inches; tail, 1 foot. Male—smaller.

Hab. Greenland (Fabricius, Holboll). Spec. in Mus. Acad., Philada.

Obs. This Eagle, which is common in Europe, and breeds in cliffs on the sea-shore, we give as an inhabitant of Greenland. We have to say, however, that the only specimen from that country which we have ever seen, and which is a young bird, presents considerable variations from European specimens, and we consider it quite possible that Dr. Brehm is right in giving it specific distinction. The young of this bird resembles that of the succeeding species (H. leucocephalus), and the most readily-detected difference is its larger size and longer tarsi. The adults are, however, entirely dissimilar.

4. Haliaetus leucocephalus. (Linn.) The Bald Eagle. The White-headed Eagle.

Falco leucocephalus. Linn., Syst. Nat., I. p. 124. (1766.)

Falco pygargus. Daud., Traité, II. p. 62. (1800.)

Falco ossifragus. Wilson, Am. Orn., VII. p. 16. (1813.)

Cat. Car., I. pl. 1; Buff., Pl. Enl., 411; Vieill., Ois. d’Am., Sept., I. pl. 3; Wils., Am. Orn., IV. pl. 36; VII. pl. 55; Aud., B. of Am., pl. 31, 126; oct. ed., I. pl. 14.

Large, but smaller than either of the preceding Eagles; bill large, strong, much hooked and sharp; wings long; tail moderate; tarsi rather short. Adult. Head, tail and its upper and under coverts white; entire other plumage brownish-black, in some specimens with the edges of the feathers paler; bill, feet and irides yellow. Younger. Entire plumage dark brown; throat paler; abdomen frequently with fulvous edgings on many feathers; bill brownish-black; iris brown; tail more or less mottled with white, which color in a more advanced stage extends over a large portion of the tail, especially on the inner webs of the feathers.

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Dimensions. Female—total length, about 3 feet; wing, about 23 inches; tail, about 14 inches. Male—smaller.

Hab. All of North America; Oregon (Townsend); Florida (Bartram); Accidental in Europe. Spec. in Mus. Acad., Philada.

Obs. This handsome bird, which has had the honor of being adopted as the emblem of the United States, inhabits the whole of North America. It is very easily recognized when adult, and the young is not readily mistaken for that of any other American species except the immediately preceding.

III. GENUS PANDION. Savigny, Nat. Hist. Egypt, I. p. 95. (1809.)

Bill short, curved from the base, hooked, compressed; wings very long; tarsi short, very thick and strong, and covered with small circular scales; claws large, curved very sharp; tail moderate. Contains about three or four species nearly allied, inhabiting various parts of the world.

1. Pandion carolinensis. (Gen.) The Fish Hawk. The Osprey.

Falco carolinensis. Gm., Syst. Nat., I. 263. (1788.)

Aquila piscatrix. Vieill., Ois. d’Am. Sept., I. p. 29. (1807.)

Pandion americanus. Vieill., Gal., I. p. 33. (1825.)

Vieill., Ois. d’Am. Sept., I. pl. 4; Cat. Car., I. pl. 2; Wilson, Am. Orn., V. pl. 37; Aud., B. of Am., pl. 81; oct. ed., I. pl. 15; Nat. Hist. N. Y. Birds, pl. 8, fig. 18.

Legs, feet and claws very strong. Adult. Head and entire under-parts white; wide stripe through the eye downwards, longitudinal stripe on the top of the head and occiput and entire upper parts of the body, wings and tail, deep umber-brown, generally with the feathers more or less edged with lighter brown; tail with about eight bands of blackish-brown, and with the greater parts of the inner-webs of its feathers white; breast with numerous cordate and circular spots of pale yellowish-brown; bill and claws bluish-black; tarsi and toes greenish-yellow. Young. Similar to the adult, but with the upper plumage edged and tipped with pale-brownish, nearly white.

Dimensions. Female—total length (of skin), about 25 inches; wing, 21½; tail, 10½ inches. Male—smaller.

Hab. Throughout North America; Texas (Woodhouse); Oregon (U. S. Ex. Exp. Vincennes). Spec. in Mus. Acad., Philada.

Obs. The American Osprey is very similar to that of the old continent (P. haliaetus), and specimens from Western America even more intimately resemble it. It is, however, larger, and retains in all the specimens that we have seen, differently-formed spots on the breast, being heart-shaped and circular, instead of narrow and lanceolate, as in the. European species. The Fish Hawk is abundant on the sea-coasts of the United States, and is one of the few rapacious birds of this country which are not molested.

IV. GENUS POLYBORUS. Vieillot, Analyse, p. 22. (1816.)

CARACARA. Cuvur. Reg. An., p. 316. (1817.)

Size smaller than the preceding; bill long, compressed, wide laterally; cere large; wings long, pointed; tail moderate, or rather long; tarsi long, 113 rather slender, covered in front with large hexagonal and irregular scales, and laterally and horizontally with smaller; claws long, slightly curved, rather weak; space in front of and below the eye naked. Two species only form this genus, both of which are abundant birds of South and Central America.

1. Polyborus tharus. (Molina.) The Caracara Eagle. The Mexican Eagle.

Falco tharus. Molina, Sagg. Stor. Nat. del Chili. (1782.)

Falco cheriway. Jacquin, Beytr. Gesch. der Vogel, p. 17. (1784.)

Falco brasiliensis. Gmelin, Syst. Nat., I. p. 262. (1788.)

Falco plancus. Miller, Cimelia Physica.

Polyborus vulgaris. Vieill., Nouv. Dict., V. p. 257. (1816.)

Jacq. Vog., pl. 4; Miller & Shaw, Cim. Phys., 2d ed., pl. 17; Vieill., Gal., I. pl. 7; Spix., B. of Bras., I. pl. 1, a; Aud., B. of Am., pl. 161; oct. ed., I. pl. 4; Swains. Zool. Ill., I. pl. 2; Gay’s Chili Orn., pl. 1.

Legs long; occipital feathers somewhat elongated. Adult. Head above, back, rump, wings, broad abdominal belt and tibiæ brownish-black; neck before and behind, sides of the head behind the eye, breast, upper and under tail-coverts yellowish-white; on the breast and neck behind finely barred transversely with black; tail for about two-thirds of its length white, with numerous narrow bars of black, and widely tipped with black; bill at base bluish; tip yellowish-white; tarsi and toes yellow. Younger. Head above dark-brown; other upper parts pale-brown, with paler edgings to many feathers; under-parts dark-brown, nearly all the feathers having longitudinal central stripes of dull white; throat yellowish-white; tail for the greater part and its coverts above and below white, with numerous transverse bands of pale ashy-brown, and tipped with brownish-black.

Dimensions. Female—total length (of skin), about 26 inches; wing, 17; tail, 10 inches. Male—larger?

Hab. Southern North America; Florida (Audubon); Texas; Mexico (McCall). Abundant in South America. Spec. in Mus. Acad., Philada.

Obs. The Caracara Eagle has been observed in Florida, and is an inhabitant also of Texas and Mexico. It walks on the ground with facility, and otherwise resembles the Vultures in its habits; and, like them, lives on dead animals for the greater part. The original edition of Molina, in which a scientific name is given to this bird for the first time since the adoption of the binomial nomenclature, we have not seen; but in his second edition, Preface, p. 1 (Bologna, 1810), it is stated to have been published in 1782. His name undoubtedly has priority.

We are inclined to the opinion that this bird, and several more or less nearly allied species of South America, belong properly to the family of Vultures;—of all the habits of which they partake. This opinion is supported somewhat by Molina’s statement, that of the present species the female is the smaller (2d ed., p. 221), as Humboldt and others have observed of the Condor, and as appears to be the case in the family of Vultures, but not in that of the Falcons.

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V. GENUS MORPHNUS. Cuvier, Regne. Animal, I. p. 317. (1817.) URUBITINGA. Less., Rev. Zool., 1839, p. 132. SPIZOGERANUS. Kaup, Class., p. 120. (1844.)

Size medium; bill rather long, abruptly curved at the tip, which is acute; edges of upper mandible festooned; wings and tail long; legs long; tarsi and toes strong, the former with wide transverse scales in front; claws strong. A genus of American species, inhabiting the southern portion of the continent.

1. Morphnus unicinctus. (Temm.) Harris’ Buzzard.

Falco unicinctus. Temm., Pl. col., I. p. (no page—livraison 53, about 1827.)

“Falco anthracinus. Licht.” Gray, Genera, I. p. 27.

Buteo Harrisii. Aud., Orn. Biog., V. p. 30. (1839.)

Polyborus tæniurus. Tschudy, Wiegm. Archiv., X. p. 263. (1844.)

Temm., Pl. col., 313; Aud., B. of Am., pl. 392: oct. ed., I. pl. 5; Tschudy, Fauna Peruana Orn., pl. 1.

Legs long, and with the feet robust; wings rather short; tail long. Adult. Shoulders, wing-coverts and tibia chestnut-red or bay; other parts very dark umber-brown; upper and under tail-coverts white; tail white at its base, and tipped with white; middle portion presenting the appearance of a very wide band, dark brownish-black, with a reddish or violet tinge. Younger. Upper-parts umber-brown, much mixed with fulvous; shoulders chestnut-red, with dark-brown spots; quills dark-brown; secondaries tipped with yellowish-white; entire under-parts yellowish-white, many feathers on the breast, sides and abdomen, with large oblong and circular spots of brown; tibiæ yellowish-white, with transverse irregular lines of light brownish-red; upper and under tail-coverts white; tail brown, with many bands of a deeper shade of the same color, and with the inner-webs yellowish and reddish-white, and having many narrow bands of dark-brown; base and tip of the tail yellowish-white.

Dimensions. Female—total length, 22 to 24 inches; wing, 15; tail, 10 inches. Young male—total length, 20 inches; wing, 13; tail, 9½ inches.

Hab. Southern States; Mexico, abundant; Texas, frequent (Col. McCall); Mississippi, rare (Dr. Jenkins); Peru; Chili (Lieut. Gilliss); Chili, abundant (Gay, Fauna Chilena). Spec. in Mus. Acad., Philada.

Obs. Col. McCall, who has seen this bird in large numbers in Texas, represents it as habitually frequenting the ground in the vicinity of water, and especially abundant on both sides of the Rio Grande. It is slow and heavy in flight, and a dull, sluggish bird in all its habits, partaking in these respects of the general characters of the Vultures.

The affinities of this species we regard at present as uncertain, and arrange it provisionally only in the present genus and sub-family, but by no means agreeing in our views with late European ornithologists.

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The foregoing are all the birds of this family which can be regarded as well-established species inhabiting that portion of North America, within our prescribed limits.

Respecting their history, one of the most important questions to the naturalist is, the change of plumage from young to mature age, and another change which takes place in assuming their spring or summer and their winter liveries. The latter change is by no means well understood in many species, and to ascertain it completely in any one would yet be an interesting contribution to its history.

A few species are known only as of exceedingly rare occurrence in the United States, but the larger number are sufficiently numerous to be investigated without difficulty. Of the former, the Washington Eagle (Haliaetus Washingtonii), Harlan’s Buzzard (Buteo Harlani), the Black Hawk, the Rough-legged Hawk (Archibuteo sancti-johannis and lagopus,) and nearly all the Western species, may be regarded as particularly requiring further research.

In the winter season, various species resort to the sea-coast, and others to the margins of bays and rivers in considerable numbers. In the vicinity of the cities these have, however, greatly diminished since the introduction of steamboats and railroads. Steam-engines, and especially locomotives, are innovations for which the Eagles and Hawks evidently have no fancy. To the markets appropriated to the accommodation of farmers and traders from the rural districts in all the cities on the Atlantic seaboard, specimens are frequently brought for sale, a demand, reliable to some extent, having arisen from collectors and amateurs.

Occasionally an immense multitude of Hawks soaring high in the air, and in company, has been observed. This curious phenomenon has been seen by our friends, Professor Baird, of the Smithsonian Institution, Washington city; Dr. Hoy, of Racine, Wisconsin; and by ourselves. It occurs in autumn, and is probably incidental to migration; but its exact character and object is unknown, and involves an interesting inquiry. It is necessarily temporary, as the procuring of suitable food by such a large number of rapacious birds would be impossible.

In the western and northern regions of North America, the birds of this family are particularly worthy of the attention of the traveller and naturalist, and would undoubtedly well repay him in the discovery of unknown species. This is the case also in the States of Florida and Texas, to the latter of which, very probably, some of the many Mexican species are visitors, that have not yet been noticed.

In Oregon and Russian-America, there are also very probably species which have not been recognized as inhabitants of this continent, though well known as birds of Northern Asia, and others entirely unknown to naturalists.

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B.

Doubtful and obscure species which have been described as inhabiting North America.

1. Falco americanus. Gm., Syst. Nat., I. p. 257. (1788.) The Black-cheeked Eagle. Pennant, Arctic Zoology, I. p. 227.

“With a dusky and blue-bill; yellow cere; head, neck and breast of a deep ash-color, each cheek marked with a broad black bar passing from the corner of the mouth beyond the eyes; back, belly, wings, and tail, black; legs yellow; feathered below the knees. Is about the size of the last (the Golden Eagle) North America,” (Pennant, as above.)

Of this bird, Gmelin gives a short abstract of Pennant’s description, and applies a scientific name. Naturalists relying solely on that abstract, have erroneously considered the species meant as the Golden Eagle (A. chrysaetus), and the name Falco americanus has accordingly been usually quoted as a synonyme. Though “feathered below the knees” is somewhat indefinite, yet, taken in connexion with “legs yellow,” it is clear that this cannot be the Golden Eagle, which has the tarsus densely feathered. There is no North American species known to which the original description applies.

2. Falco candidus. Gm., Syst. Nat., I. p. 258. (1788.) The Louisiana White Eagle. Lath., Syn., I. p. 36. Du Pratz, Hist. Louisiane, II. p. 109.

Falco conciliator. Shaw, Gen. Zool. Aves., VII. p. 77. (1809.)

White; tips of the wings black. Smaller than the Golden Eagle.

This bird is represented by Du Pratz as held in high estimation by the aborigines of Louisiana, who used its feathers for ornamenting the calumet or symbol of peace. It may have been an albino of a known species, or distinct and now unknown. The description applies to a beautiful Mexican species, Buteo Ghiesbrectii (Dubus), which is about the size of the Red-tailed Hawk (B. borealis), and should it ever be observed in Louisiana, the question may be considered as settled.

3. Falco variegatus. Gm., Syst. Nat., I. p. 267. (1788.) The Speckled Buzzard. Lath., Syn., I. p. 97.

“Length more than 12 inches; in shape like our common buzzard. The bill is dusky; the whole head and neck as far as the shoulders whitish; the shaft of each feather blotched irregularly with rusty-brown; back and wing-coverts brown, several of the feathers, especially on the wing-coverts, are spotted with white; tail dark brown, crossed with several bars; but these are nearly obsolete, appearing on close inspection; the quills are very dark, almost black; the under parts from the breast are white; down the shaft of each feather is a blotch of brown; these marks spread out larger and broader as they proceed downwards to the belly; thighs pretty much the same; vent plain white; legs yellow; claws black. A fine specimen of this bird is in the Leverian Museum, which came from North America.” (Latham, as above.)

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Generally cited as a synonyme for the Marsh Hawk, Circus hudsonius, with, as we think, but a small degree of propriety. It appears to us to be the young of either Buteo pennsylvanicus or Accipiter cooperii, or an unknown bird.

4. Falco albidus. Gm., Syst. Nat., I. p. 267. (1788.) The Buzzardet. Penn., Arct. Zool., I. p. 245.

“With dusky bill; head, cheeks, neck, breast and belly white, marked with large brown spots more sparingly dispersed over the breast and belly; lesser coverts brown; the others colored like the head; primaries dusky; thighs white, with small sagittal spots of brown; tail dusky, barred and tipped with white; legs yellow. Length, 15 inches. It has much the habit of the Buzzard, but the legs in proportion are rather longer. In the Leverian Museum. Except in the almost uniform color of the tail, Mr. Latham’s species, p. 97, No. 83, agrees with this (which is the preceding F. variegatus). North America.” (Pennant, as above.)

Probably the same as the preceding.

5. Falco obsoletus. Gm., Syst. Nat., I. p. 268. (1788.) The plain Falcon. Penn., Arct. Zool., I. p. 242.

“Bill black; head dusky; nape spotted with white; back and coverts of the wings and tail of an uniform deep brown; under-side of the neck, breast, belly and thighs deep brown, slightly spotted with white; primaries dusky; inner webs marked with great oval spots of white, mottled with brown; middle feathers of the tail plain brown; inner webs of the rest mottled with white; exterior webs and ends slightly edged with the same; legs strong; wing reaches near the length of the tail. Length, from bill to tail, 2 feet 1 inch. Inhabits Hudson’s Bay.” (Pennant, as above.)

We are acquainted with no bird to which this description and measurement apply.

6. Falco spadiceus. Gm., Syst. Nat., I. p. 273. (1788.) The Chocolate-colored Falcon. Penn., Arctic Zool., I. p. 234, pl. 9.

“With a short and black bill, and yellow cere. The whole plumage of a deep bay or chocolate color, in parts tinged with ferruginous; primaries black; the lower exterior sides of a pure white, forming a conspicuous spot or speculum; the wings reach to the end of the tail; the exterior sides of the five outermost feathers of the tail dusky; their inner sides blotched with black and white; the two middle black and cinereous; the legs and toes feathered, the last remarkably short. Length, 1 foot 10 inches. Inhabits Hudson’s Bay and Newfoundland. Preys much on ducks. Sits on a rock and watches their rising, when it instantly strikes at them.” (Pennant, as above.)

Regarded by authors as a synonyme for the Black Hawk (Archibuteo sancti-johannis), but the description suits better the Ferruginous Buzzard (A. ferrugineus). Neither of these has, however, the toes feathered, nor otherwise entirely agrees with the description. It may be an unknown species.

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7. Falco obscurus. Gm., Syst. Nat., I. p. 281. (1788.) The Dusky Falcon. Penn., Arct. Zool., I. p. 248.

“With a bluish bill; upper mandible armed with a sharp process; yellow cere; head, neck and coverts of the wings and tail dusky brown, slightly edged with ferruginous; hind part of the neck spotted with white; primaries dusky; inner webs marked with oval spots of a pale rust color; tail short, tipped with white, and barred with four broad dusky strokes, and the same number of narrow ones of white; the hind part of the head spotted with white; from the chin to the tail whitish, streaked downwards with distinct lines of black; legs deep yellow. Inferior in size to the last (F. dubius or fusca). Inhabits the province of New York.” (Pennant, as above.)

Cited by authors as a synonyme for the sharp-skinned Hawk (Accipiter fuscus), which seems to be erroneous, though correct enough if reference only be made to Gmelin’s compilation of Pennant’s description. The latter, as quoted above, and which is the original, appears to apply to Falco columbarius (Linn.), but not with sufficient accuracy to be without doubt, and we know of no bird at present inhabiting “the province of New York” that it entirely suits.

8. Aquila maculosa. Vieill., Ois d’Am. Sept., I. p. 28, pl. 3 bis. (1807.)

Upper part of the head, nape, neck, and mantle, black; eyebrow white, bordered by a black line from the eye; space between the bill and eye and cere blue, the former with scattered hairs; iris yellow; throat and breast white, every feather with a longitudinal central stripe of black; abdomen black, many feathers having circular spots of white; tibia and under tail-coverts ferruginous, with central spots of brownish; rump and upper tail-coverts white, with transverse stripes of black; quills and tail leaden gray above, light bluish-gray beneath; feet orange; claws blackish. Total length, about 25 inches; wing, 16; tail, 10 inches.

An excellent figure of this bird is given by Vieillot, as above, but which represents no species with which we are acquainted. In general appearance it resembles Phalcobænus carunculatus, Des Murs (Rev. et Mag. de Zool., April, 1853, p. 154), a South American species, of which specimens are in the collection of the Philadelphia Academy. Though given by Vieillot as a bird of North America (as above, and in Nouv. Dict., XXXII. p. 56), we suspect that he was mistaken.

9. Sparvius ardosiaceus. Vieill., Ency. Meth., III. p. 1274. (1823).

Body above, bluish slate color; beneath, ferruginous, with transverse white bands; chin white; bill bluish-black; feet orange; cere and edges of the mouth dull green; quills and tail brownish-black; eyebrows dull white; tail slightly forked. North America.

Possibly Accipiter fuscus, but we regard it as quite remarkable that Vieillot, at so late a date, should have again described that species, being undoubtedly well acquainted with North American birds. We recollect no bird which exactly suits this description.

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10. Falco Bachmanii. Aud., Orn. Biog., V. p. 334. (1839, the date on the title-page of this volume is erroneously printed 1849.)

“I have several times seen in South Carolina a Hawk flying, equal in size to Falco lineatus, and remarkable for the great breadth of its wings. It was of a uniform brown color, excepting the tail, which was barred with white. The same bird has also been repeatedly observed by my friend, Dr. Bachman, who feels assured of its being distinct from any other Hawk hitherto found in North America.” (Audubon, as above.)

This is the entire and only description published and the species alluded to has never been identified, to our knowledge.

11. Milvus leucomelas. Rafinesque, Annals of Nature, part I. p. 4. (1820.)

“White, unspotted; top of head and part of the back, wings, tail, and bill, black; feet yellow. It is found in West Kentucky and Illinois; it feeds on fishes, and is therefore called Fishing Hawk. Size small, tail quite forked.” (Raf., as above.)

This is a puzzler. If any such bird exists, it has escaped late researches, though we very much suspect that Rafinesque ventured a description on reports, rather oddly confounding the Forked-tailed Hawk (Nauclerus) and the Osprey, or Fish Hawk (Pandion).

12. Aquila dicronyx. Rafinesque, Atlantic Journal, p. 63. (1832.)

The specimen described under this name was the same that is alluded to by Mr. Audubon in his article on the White-headed Eagle, in Orn. Biog., II. p. 163, as being kept in captivity in the suburbs of Philadelphia, and this description and its author he also alludes to. We mention this bird for the purpose of facilitating the student who may not have access to the works of Rafinesque, and for the purpose of pointing out a curious error into which Mr. Audubon and Dr. Harlan, as quoted by him, seem to have fallen, in regarding it as the White-headed or Bald Eagle (Haliaetus leucocephalus). It is expressly stated by Rafinesque to have been brought from “near Buenos Ayres,” and was evidently, from his description, the Circaetus coronatus of South America. This name is therefore by no means to be cited as a synonyme for Haliaetus leucocephalus.