60 



Above more slate coloured, with less white 

 variegation : neck shaded with greyish ; 

 tail with narrow sub-terminal black band on 

 white apical half. 

 168. Le'uco2)ter7iis lacermdata (Temm.), PI. Col. 

 1, pi. 437 (1827) [Brazil.'] 

 White-headed Hawk. 



Smaller : above slate-black ; above eye a 

 white stripe, and nape streaked and margined 

 with same ; tail black, tipi:)ed with ashy- 

 J^rown, with a median band of white ; below 

 white narrowly streaked with black on sides 

 of chest. 

 160. Leuco'pternis kvhli Bp., Consp. Av. 1, p. 19, 

 1849. [Para.] 

 White-browed Hawk. 



Above black ; head, neck and lower parts 

 Avhite ; lores and strijDe behind eye black ; 

 crown and naj)e streaked with black ; tail 

 black with broad band of white about |rd 

 from end. 



170. Le^icopternis melano2')s (Lath.). Ind. Orn. 1, p. 



37 (1790). [Caijenne.] 

 Black-faced Hawk. 



Above uniform plumbeous ; wings and tail 

 black ; latter with a narrow band of Avhite 

 near middle ; below white with a few black 

 shaft stripes on sides of breast. 



171. Leuco2iternis semi-phimbea (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 Avhite, and a 

 few anterior incomplete bars of same. 



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

 429, pi. xxiv. [Costa Rica.] 



Barred Hawk. 



S.E. Brazil 



N.E.Brazil, 



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. 



