Note 80 — Family FALCONIDÆ.—The Falcons. (continued 3)
Reading edition
Circus cyaneus, var. cinereus (Vieill.). Circus cinereus, Vieill. Nouv. Dict. H. N. IV, 1816, 454.—Darwin, Zoöl. Beag. pt. iii, 30.—D’Orb. Synop. Av. Mag. Zool. 1837.—Strickl. Orn. Syn. I, 156.—Gray, Hand List, I, 37, No. 368. Circus campestris, Vieill. Enc. Méth. III, 1823, 1213. Circus frenatus, Licht. Verz. Doubl. 1823, p. 62. Circus histrionicus, Quoy, Zoöl. Journ. III, 1826, 271.
Specimens examined.—National Museum, 7; Philadelphia Academy, 5; Boston Society, 3; Museum Cambridge, 1; Cab. G. N. Lawrence, 1. Total, 17.
Measurements.—♂. Wing, 12.40–13.25; tail, 8.50–9.00; culmen, .62–.63; tarsus, 2.42–2.60; middle toe, 1.20–1.25. Specimens, 11. ♀. Wing, 13.75–14.50; tail, 9.30–10.50; culmen, .75–.80; tarsus, 2.80–3.00; middle toe, 1.40–1.50. Specimens, 5.