8 
FALCONING. AQUILA. 
^road-winged Hawk, Falco Pennsylvanicus, WiLS. Amer. Ornith. v. vi. p. 92. 
Falco Pennsylvanicus, Bonap. Syn. p. 29. 
Broad-winged Hawk, Falco Pennsylvanicus, Nutt. Man. v. i. p. 105. 
Broad-winged Hawk, Falco Pennsylvanicus, Auu. Orn. Biog. v. i. p. 461, v. v. 
p. 377. 
11. 7. Buteo lagopus, Vigors. Rough-legged Buzzard. 
Plate CCCCXXII. Fig. 1. Old Male. Fig. 2. Young, first wintei*. 
Plate CL XVI. Male. Middle age. 
Tarsi feathered in their whole length. Adult male with the general 
colour of the plumage blackish-brown ; the forehead and a large patch 
on the hind neck white^ streaked with blackish-brown ; all the feathers 
of the back, the scapulars, the wing-coverts, the quills, and the tail- 
feathers, white toward the base, and more or less barred with whitish- 
grey, or brown ,* axillar feathers, some of those on the sides, and some 
of the tibial feathers, with the lower tail-coverts similarly marked ; the 
white forming a conspicuous patch on the under surface of the wing, 
occupying the greater part of the primaries as well as part of the inner 
webs of the secondaries ; tail brownish-black, barred with greyish- 
white, there being six black bands on the middle feathers, the last 
very broad. Female of a uniform dark chocolate-brown, the tail banded, 
and the same parts white as in the male. Young with the head and 
neck streaked with umber-brown, and yellowish- white ; back umber- 
brown, variegated with light reddish-brown and yellowish-white ; 
quills dark brown towards the end, the outer webs of the first tinged 
with grey, the base of all white, that colour extending farther on the 
secondaries, of most of which, and of some of the primaries, the inner 
web is irregularly barred with brown ; tail white at the base, brown 
toward the end, with a broad subterminal bar of brownish- black, the 
tips brownish- white ; middle and hind part of the breast, with the 
sides, brownish-black, the rest of the lower parts pale yellowish-red, 
streaked or barred with dusky. 
Male, 21i, 51 i. Female, 23. 
From Maryland northward. Columbia River. Not met with in the 
interior. Migratory. Not very abundant. 
Black Hawk, Falco niger, Wils. Amei*. Orn.^. vi. p. 82. Adult. 
Falco lagopus, Bonap. Syn. p. 32. Young. 
Falco Sanci-Joliannis, Bonap. Syn. p. 32. Adult. 
Buteo lagopus, Rough-legged Buzzard, Swains. & Rich. F. Bor. Amer. v. ii. p. 52. 
Rough-legged Falcon, Falco lagopus, Wils. Amer. Orn. v. iv. p. 59, Young; v. v. 
p. 216, Adult and Young. 
GENUS III. AQUILA, Briss. EAGLE. 
BiU rather short, deep, compressed ; upper mandible with 
the dorsal outline nearly straight and sloping at the base, 
beyond the cere decurved, the sides sloping and slightly con- 
