169. 
mit. 
101 
Wing ¢ 360-380, 2 390-410 mm. ; above 
blackish-slate, most of feathers tipped or 
barred with white ; head, neck and under- 
parts white ; basal half of tail black, ter- 
minal white. 
Leucopternis lacernulata (Temm.), Pl. Col. 
1, pl. 437 (1827). [Brazil.] 
White-headed Hawk. 
Wing 3 295, 2 315 mm. ; above more slate 
coloured, with less white variegation : 
head and hind neck shaded with greyish ; 
tail with narrow sub-terminal black band 
on white apical half. 
Leucopterms kuhlt Bp., Consp. Av. 1, p. 19, 
1849. [No loc.: Para, apud Chubb. | 
White-browed Hawk. 
Wing ¢ 212, 2 220 mm.; smaller ; above 
slate-black ; above eye a white stripe, and 
nape 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. 
Leucopterms melanops (Lath.), Ind.Orn.1., 
p- 37 (1790). [Cayenne.]| 
Black-faced Hawk. 
Wing ¢ 210, 2 230 mm.; head, neck and 
lower parts white ; lores and stripe behind 
eye black ; crown and nape streaked with 
black ; back and wings black with large 
spots of white, except on quills ; tail black 
with broad band of white about a third 
from end. 
Si. Brazil: 
Amazonia, from 
Para to 
E. Peru. 
Guiana ; 
N. Brazil to 
E. Ecuador. 
