57 



159. Rupornis leucorrhos (Quoy et Gaim.), Voy. Brazil to 

 de rUraii. p. 91, pi. 13 (1824). [Brazil] Peru, 

 White-rumped Hawk. Colombia, 



Venezuela , 



Gen. XXXVI. BUSARELLUS Lafr. (1842.) 



Size of Buteo ; sole of foot covered with rugose and 

 throny spicules (like that of Pandion) tip of upper 

 mandible much curved. 



Above bright chestnut, with narrow black 

 shaft stripes ; outermost wing-coverts and 

 quills black ; basal half of tail chestnut 

 banded with black, apical half black with 

 narrow white tip ; head and neck creamy 

 buff ; lower throat black ; below chestnut. 

 160, Busarellus nigricollis (Lath.), Ind. Orn. 1, p. 

 35 (1790). [Cayenne.] 

 Black-collared Hawk. 



Brazil, 

 Guiana, 

 Peru, 

 Paraguay. 



Gen. XXXVII. BUTEOGALLUS Less. (1831.) 



Size nearly the same ; outer toe hardly longer than 

 inner ; soles of feet smooth, wings short of tail 

 hy less than length of hind toe. 



Plumage above black, with rufous margins on 

 mantle and wing-coverts ; quills bright 

 chestnut, the outer webs black ; tail black 

 with white tip and indistinct median band of 

 white ; throat blackish ; below rufous, 

 narrowly barred with black. 

 161. Buteogallus mquinoctialis (Gmel.). S.N. i. Guiana ; 

 p. 265 (1788). [Cayen7ie.] Colombia, 



Equinoctial Buzzard. Paraguay. 



Gen. XXXVIII. URUBITINGA Lafr. (1837). 



Rather larger : tarsus scutellate before and 

 behind, reticulated laterally ; distance between tips 

 of wing and tail greater than length of hind toe ; 

 secondaries nearly as long as primaries ; general 

 plumage black. 



Above and beloAV black ; upper tail-coverts 

 mostly white ; basal half of tail white with a 

 broad black band : apical half black with 

 white tip. 



