51 



147. Buteo abbreviatus abbrevlatus Gab., in 

 Schomb. Reis. Guiana, iii, ip. 739 (1848) 

 [British Guiana.] 

 Zone -tailed Buzzard. 



147a. 



148. 



149. 



150. 



Much smaller ; wing " '- 12.50 ; tail 6 in. ; 

 uniform sooty black ; tail with 4 grey bars 

 above, showing white below. 

 Buteo abbreviatus minimus subsp. no v. [" $ " 

 Miritiba, Braz., 18.8.09, coll. H.K.S.] 



D. Tail white. 



Length(^22 ; wing 15.25 in. ; general colour 

 of (J bluish-slate ; tail white with about 9 

 narroAV bars of slate grey and broad sub- 

 terminal blackish band ; $ head, neck and 

 upper breast slate ; mantle, scapulars and 

 belly rufous. 



Buteo poliosomus (Quoy et Gaim.) Voy. 

 de I'Uran. Ois. p. 92, pi. 14 (1824) [" lies 

 Malouines.''] 

 Falkland Island Buzzard. 



Size similar ; adult ^, general plumage slate, 

 tail with 8 darker bars and broad black sub- 

 terminal band ; abdomen and thighs slate, 

 more or less barred with white ; $ wings, 

 rump and belly more or less suffused with 

 rufous ; thighs rufous barred with white. 

 Buteo hypospodius Gurney, Ibis, 1876, p. 

 73, pi. 3. [MedelUn.] 

 Grey-bellied Buzzard. 



Larger : wing (5 ?) 19 in. ; above and tail 



much as in $ of B. e. erythronotus ; below 



barred with white and slate, the breast mixed 



with rufous. 



Buteo j)oecilochrous Gurney, Ibis, 1879, p. 



176. [Yauayacu.] [ = B. melanosternus . 



Berl. and Stolzm.] 



Gurney's Red-backed Buzzard. 



Brit. Guiana, 

 Surinam, 

 Brazil, 

 Venezuela, 

 Mexico, 

 Arizona, New 

 Mexico, 

 Texas, S. to 

 Bolivia. 



S. Brazil. 



Chile, 

 Patagonia, 

 Falkland Is., 

 Tierra del 

 Fuego. 



Colombia, 

 Venezuela, 

 Amazonia. 

 Brazil. 



Ecuador, 



Peru, 



Bolivia, 



Chile, 



Argentina, 



