27. BUTEO. 185 



Buteo oxypterus, Cass. Pr. Phil. Acad. 1855, p. 282 ; SUickl. Orn. 



Sy7i. p. 38 (1855) ; Cass, in Baird's B. N. Am. p. 23, pi. 15. fig. 2 



(1860) ; Gra>/, Hand-l. B. i. p. 8 (1869) ; Cooper, B. Calif, ed. 



Baird, p. 480 (1871) ; Coues, Key to N. Am. B. p. 218 (1872). 

 Buteo insignatus, Cass. B. Calif, l^ Texas, p. 102, pi. 31 (1855) ; 



6trickl. Orn. Syn. p. 38 (1855) ; Scl. P. Z. S. 1856, p. 285 ; Cass, in 



Baird, B. N. Am. p. 23 (I860) ; Gray, Hand-l. B. i. p. 8 (1869) ; 



Cooper, B. Calif, ed. Baird, p. 474 (1871). 

 Buteola insignata, Bp. C. JR. xlii. p. 956 (1856). 

 Buteo fuliginosus, Scl. P. Z. S. 1858, p. 356, et Tr. Z. S. iv. p. 267, 



pi. Ixii. (1858); Cass, in Baird's B. N. Am. pi. 15. fig. 1 (1860); 



Salv. Ibis, 1860, p. 401 ; Gray, Hand-l. B. i. p. 7 (1869). 

 Buteo harlani, Bryant, Proc. Bost. Soc. N. H. viii. p. 115 (1862). 



Toung. Above dull brown, interscapulary region a little darker ; 

 lores whitish ; ear-coverts whitish, narrowly streaked with dark 

 brown, the upper margin nearly uniform brown, as also are the cheeks, 

 eyebrow, sides of neck, and hinder part of the latter, streaked with 

 white ; quills brown, inclining to blackish brown at tip ; primaries 

 slightly shaded externally with ashy, and barred with darker brown ; 

 primaries white for greater part of inner web below, secondaries 

 barred with dark brown; upper tail- coverts slightly tipped with 

 fulvous, and having concealed spots of white at base ; tail inclining 

 to ashy brown, whity brown at extreme tip, and crossed with nine 

 or ten bauds of darker brown ; under surface of body white, nar- 

 rowly streaked on the throat and more broadly on the breast with 

 dark brown, inclining to spots on lower chest and to distinct 

 bars on the under tail-coverts, the markings larger on sides 

 of breast, flanks, and thighs, producing a nearly uniform appearance ; 

 under wing-coverts brown, with a few white margins and bars. 



Adult female. Nearly uniform sooty brown, the wing-coverts and 

 scapulars paler on their margins ; lores whitish ; throat slightly 

 streaked with white ; fore neck and centre of breast sHghtly mottled 

 with fulvous or white spots and bars, the remains of previous 

 plumage ; under taU-coverts buffy white, barred across with dark 

 brown ; tail brown, conspicuously tipped with rufous white, and 

 crossed with seven or eight bars of darker brown, the subterminal 

 one being the broadest ; cere yellowish ; bill bluish black ; feet yel- 

 lowish ; iris light brown. Total length 21 inches, culmen 1-4, wing 

 15-9, tan 9-3, tarsus 3-15. 



Fully adult (B. fuliginosus'). Everywhere sooty black, with a few 

 more or less concealed whitish bars on the upper and under taU- 

 coverts ; inner lining of wing white ; tail ashy brown, crossed 

 with nine bars of black, the terminal one being the broadest. 

 Total length 21 inches, culmen 1-35, wing 13-5, tail 7-5, tarsus 2-55. 



Hah. The whole of North America, ranging in winter as far south 

 as Patagonia. 



a, b. Ad. st. North America. Purchased. 



c. Ad. st. Mexico. M. A. Boucard [C.]. 



d. Ad. sk. California. Mr. Hardv [C.]. 



e. Ad. sk. Patagonia Purchased.. 

 /, g. Juv. sk. Patagonia Purchased. 



