60 



N.E.Brazil 



Above more slate coloured, with less white 

 variegation : neck shaded with greyish : 

 tail with narrow siib-terniinal black band on 

 Avhite apical half. 



168. Leucopternis lacernulata (Temm.), PI. Col. S.E.Brazil 

 1, pi. 437 (1827) [Brazil] 



White-headed Hawk. 



Smaller : above slate-black ; above eye a 

 white strii^e, and nai)e streaked and margined 

 with same ; tail black, tipped with ashy- 

 brown, with a median band of white ; below 

 white narrowly streaked with black on sides 

 of chest. 



169. Leucopternis kuhli Bp., Consp. Av. 1, p. 19, 



1849. [Para.] 

 White-browed Hawk. 



Above black ; head, neck and lower parts 

 white ; lores and stripe behind eye black ; 

 cro^vn and nape streaked with black ; tail 

 black with broad band of white about -Jrd 

 from end. 



170. Leucopternis melanops (Lath.). Ind. Orn. 1, p. 



37 (1790). [Caijenne.] 

 Black-faced Hawk. 



Above uniform plumbeoTis ; wings and tail 

 black ; latter with a narrow band of white 

 near middle ; below white with a few black 

 shaft stripes on sides of breast. 



171. Ijeucopternis semi -plumb ea (Lawr.) Ann. 



Lye. N.Y. vii., p. 288 (1861). [Panama.] 

 Semi -plumbeous Hawk. 



Above, also throat andforeneck, slaty-black, 

 below white narrowly barred with black ; 

 tail black with a median band of white, and a 

 few anterior incomplete bars of same. 



172. Leucopternis jjrinceps Sclat., P.Z.S. 1865, p. 

 429, pi. xxiv. [Costa Eica.] 

 Barred Hawk. 



Guiana ; 

 N. Brazil 



Colombia 

 and Panama 

 to Costa 

 Rica. 



Costa 

 Rica. 

 N. Ecuador. 



Gen. XL. HARPYHALIAETUS Lafr. (1842.) 



Much larger than Buteo ; Head with a long 

 occipital crest ; tail short, not three times as long 

 as tarsus. 



