84 



D. Tail white. 



147. Buteo poliosomus (Quoy et Gaim.) Voy. de 

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

 Malouines."] 

 Falkland Island Buzzard. 



Wing (J 375-385, ? 405-427 mm. ; general 

 colour of iS bluish-slate ; tail white with 

 about 9 narrow bars of slate grey and broad 

 sub-terminal blackish band ; $ head, neck 

 and upper breast and thighs slate ; mantle, 

 scapulars and belly rufous. 



Chile, 

 Patagonia, 

 Falkland Is., 

 Tierra del 

 Fuego. 



148. Buteo hypospodius Gurney, Ibis, 1876, p. 

 73. pi. 3. [Medellin, Colombia, type B.M.] 

 Grey-belUed Buzzard. 



Size larger ; wing (J 413-448 mm. ; adult 

 cj, general plumage slate, tail with 8 fine 

 darker bars and broad black sub-terminal 

 band ; abdomen and thighs slate, more or 

 less barred with white ; $ wing coverts and 

 belly more or less suffused with rufous ; 

 thighs rufous barred with white. 



Colombia, 

 Venezuela, 

 Amazonia 

 Brazil. 



149. Buteo pcBctlochrous Gurney, Ibis, 1879, 

 p. 176. [Yauayacu, Ecuador, Salvin-God- 

 man Coll. J [ = B. melanostetnus. Berl. and 

 Stolzm.J 

 Gurney 's Red-backed Buzzard. 



Wing 3 420, ? 468 mm. ; ^ similar to that 

 of B. hypospodius, $ above and tail much 

 as in $ of B. e. erythronotus, the whole 

 mantle and scapulars rufous ; below slate 

 barred with white, the throat and chest 

 uniform and breast ixdxed with rufous. 

 Immature : throat and chest blackish, below 

 rufous ; thighs barred with white ; tail 

 grey with numerous slaty bars and black 

 sub-terminal band. 



Ecuador, Peru, 

 Bolivia, Chile. 



