THE GREY-FACED BUZZARD-EAGLE. 
197 
barred with black ; quills chestnut broadly tipped with dark brown, and a 
portion of the inner webs margined with white ; the inner webs of the 
primaries and both webs of the secondaries barred with dark brown ; 
wing-coverts mixed rufous and white ; under wing-coverts pale chestnut 
barred with brown. 
The female is like the male, but the rump is of a duller chestnut and the 
head and nape are darker. 
The plumage does not vary much in this species • the colours increase 
in brilliancy with age, and the bars on the tail_, which are very distinct in 
the young bird, become much interrupted in the adult. In the young the 
white bars extend to the middle of the abdomen ; the edge of the wing is 
white ; the breast is brown, and the throat, lores, and forehead nearly 
pure white ; the crown is rufous with dark brown stripes ; and the whole 
plumage, where grey in the adult, inclines to brown in the young. 
Eyelids and skin over the eye orange-yellow ; iris yellow; gape, bill 
and cere orange ; the tips of both mandibles brown ; mouth flesh-colour ; 
legs yellow; claws dark horn. 
Length 15*5 inches, tail 6, wing 11, tarsus 2'5, bill from gape 1'35. 
The female is rather smaller than the male, and not, as might be expected, 
larger. 
The Grey-breasted Buzzard-Eagle is abundant over the whole of Pegu. It 
appears to be somewhat rare in Tenasserim, and Mr. Davison did not observe 
it south of Amherst, nor did Capt. Bingham meet with it further east 
in the Thoungyeen valley. 
It occurs in Siam, and it has been recorded from Java, Timor, Borneo 
and Celebes. 
This richly- coloured bird frequents the same sort of jungle as the pre- 
ceding, being found in open country and the banks of rivers. It feeds on 
snakes and crabs. I found the nest in March on two occasions — small 
structures of sticks placed in low mango trees and containing two eggs, 
which were pale greenish white in colour. 
572. BUTASTUR INDICUS. 
THE GREY-FACED BUZZARD-EAGLE. 
Falco indicus, Gm. Syst. Nat. i. p. 264. Falco poliogenys, Temm. PL Col 325. 
Poliornis poliogenys, Hume, Rough Notea, ii. p. 290. Poliornis indica, 
Salvad. XJcc. Born, p. 9; Bl. B. Burm. p. 61. Butastur indicus, Shmye, Cat. 
Birds B. Mus. i. p. 297 ; David et Oust. Ois. Chine, p. 18 ; Hume 8f Dav. S. F. 
vi. pp. 19, 497 ; Hume, S. F. viii. p. 82. 
Description. — Adult. Above brown, inclining to ashy on the head and 
upper back, and to rufous on the lower back, rump and upper tail- coverts, 
