Note 79 — Family FALCONIDÆ.—The Falcons. (continued 3)
Reading edition
Circus cyaneus, var. cyaneus (Linn.). Falco cyaneus, Linn. S. N. 1766, 126. Circus cyaneus, Less. Man. Orn. I, 105.—Gould, B. Europe, pl. xxxiii.—Bonap. List, 22.—Degl. Orn. Eur. I, 74.—Strickl. Orn. Syn. I, 147.—Gray, Hand List, I, 37, No. 364. Falco pygargus, Linn. S. N. 1766, 126. Circus pygargus, Steph. Zoöl. XIII, pl. ii, 41.
Specimens examined.—National Museum, 3; Philadelphia Academy, 4; New York Museum, 1; Boston Society, 5. Total, 13.