157 
Wing ad. 296 mm.; general colour lead 
grey, the primaries blackish ; tail black in 
adult, in younger birds with 2 or more 
bands of white ; cere, lores, gape and feet 
orange yellow; bill black ; iris red. 
Gen. LXXVII. CHONDROHIERAX Less. (1843). 
Type by monotypy Dedalion erythropus Less. = Falco uncinatus 
Illiger. 
[ =Regerhinus Kaup.] 
Tail rounded, outer feather shorter than middle 
one ; loral space bare ; upper mandible without a 
tooth. Size moderate, length under 18 in. 
*293. 
254. 
Chondoherax uncinatus (Illiger) in Temm., 
Pl. Col.,i., livr. 18, pl. 103, 104, 115 (1824). 
[Brazil =Rio Janeiro, apud Chubb, type in 
Leyd. Mus.] 
Hook-billed Kite. 
Wing 3 272-276, 2 290, tail 190 mm. ; 
above and below bluish slate, with narrow 
irregular bars of white below in less mature 
birds ; primaries blackish shaded with slate 
grey ; secondaries whitish below, barred 
and tipped with black ; tail ashy grey with 
2 bands of black ; under tail-coverts buff ; 
bill black. First mature plumage generally 
browner, with a rufous collar round hind 
neck ; below banded with tawny rufous 
and ochraceous buff. 
Chondrohierax megarhynchus (Des Murs), 
in Casteln., Voy., Ois., p. 9, pl. i. (1855). 
[Savayacu, type in Paris Mus.] 
Large-billed Kite. 
Larger (wing ¢ 285, 92 304-318 mm.) and 
with a larger bill (culmen 50-64 mm. against 
40-43 mm. in typical form.) 
Guiana, 
Venezuela, 
Ecuador, Brazil, 
Bolivia ; 
Trinidad, 
Grenada ; 
Centr. Amer. to 
Yucatan. 
E. Peru, Andes 
of Venezuela ; 
Bolivia. 
