212 



FALCONIDJE, MUENAL BIEDS OF PEEY. GEN. 156, 157. 



1 ■• 



V- 



imderneath ; height of bill at base greater than chord of culmen ; 4th quill longest, 

 2d shorter than 6th, 1st very short. The two following species are exactly alike in 

 color ; one is a miniature of the other. The ordinary phmage is dark brown above 

 (deepest on the head, the occipital feathers showing white when disturbed) with an 

 ashy or plumbeous shade which increases with age, till the general cast is quite 

 bluish-ash ; below, white or whitish, variously streaked with dark brown and rusty, 

 finally changing to brownish-red (palest behind and slightly ashy across the breast) 

 with the white then only showing in narrow cross-bars ; chin, throat and crissum 

 mostly white with blackish pencilling ; wings and tail barred with ashy and brown 

 or blackish, the quills white-barred basally, the tail whitish-tipped ; bill dark ; 

 claws black ; cere and feet yellow. 



Sharp-sldnned Hcavh. "Pigeon Hcnok." Feet extremely slender; bare 

 portiou of tarsus longer than middle toe ; scutella frequently fused ; tail 



square. $ 10-12 ; Aviug 

 6-7 



_ tail 5-6. ? 12-14; 

 wing 7-8; tail 6-7. 

 "Whole foot 3J or less. 

 North America, abund- 

 ant. Falco veloxWi'LS., 

 V, 116, pi. 45, f. 1 ; >. 

 5,'^^^^ pennsylvanicus WiL,s. , vi, 

 13, pi. 46, f. 1; Sw. and 

 EicH., F. B.-A. ii, 74; 

 NuTT., i, 87 ; Aud., i, 

 100,pl. 25;CASS.inBD., 



18; Coop., 466 fuscus. 



Cooj^er's IlaipJe. Chicken Ilawh. Feet moderately stout; bare portion 

 of tarsus shorter than middle toe ; scutella remainiug distinct ; tail a little 

 rounded. $ 16-18; wing 9-10; tail 7-8; ? 18-20; wing 10-11 ; tail 

 8-9. Whole foot 4 or more. N. Am., especially U. S. ; common. Bonap., 

 Am. Orn. i, 1, pi. 1, f . 1 ; Aud., i, 98, pi. 24; Cass, in Bd., 16; Coop., 

 464. Falco cooperi and F. stanleii Nutt., i, 90, 91. A. mexicanvs Cass. 

 in Bd., 17: Coop., 465, is the same bird coopeeii. 



riG. liO. Coopcr'3 Hawk. 



157. Genus ASTUR Laeepede. 



. GoshaioJe. Adult dark bluish-slate blackening on the head, with a white 

 superciliary stripe ; tail wdth four broad dark bars ; below, closely barred 

 with white and pale slate, and sharply streaked with blackish. Young dark 

 brown above, the feathers with pale edges, streaked with tawny-brown on 

 the head and cervix ; below fulvous-white with oblong brown markings. 

 9 2 feet long; wing 14 inches ; tail 11; g smaller. A large, powerful, 

 and, in perfect plumage, a very handsome hawk, inhabiting irorthern North 

 America ; the northern half of the United States chieflj' in winter, but also 

 breeding in mountainous parts. WiLS., vi, 80, pi. 52, f. 3 ; Nutt., i, 85 ; 

 Aud., i, 95, pi. 23; Cass, in Bd., 15; Coop., 467. A variety of the 

 European Astur palumhariusf atrioapillus. 



