THE SUMATRAN KITE-FALCON. 
209 
thighs and under tail-coverts black ; scapulars white, broadly edged with 
black, which nearly conceals the white when the feathers are properly 
arranged ; primaries and secondaries black ; the later primaries and all the 
secondaries with a chestnut patch on the outer webs; tertiaries white at 
base, black at the ends, tinged with chestnut on the outer webs ; under 
aspect of wing ashy. 
The young do not appear to differ in any material respect from the adult 
except in being duller. 
Male : cere dull blue ; bill a lighter blue, shaded with horny at tip ; iris 
lake-brown ; legs and feet whitish blue ; claws dark horny. Female : iris 
dark brown or purplish brown. {Bingham, MS.) 
Male : length 12" 5 5 inches, tail 5*8, wing 9*35, tarsus 1, bill from 
gape 1, crest 1-5. Female : length 13*2 inches, tail 6*2, wing 9*8, tarsus 
ri, bill from gape 1, crest 2* 5. 
The Black-crested Kite-Falcon is said by Mr. Blyth to occur in Arrakan 
and Tenasserim. In the latter Division Mr. Davison found it rare and appa- 
rently confined to the souther a portion ; but Capt. Bingham states that it 
is common in the Thoungyeen valley. I have never met with it in Pegu. 
It occurs in India from Bengal down the east coast to Ceylon. On the 
south it has frequently been met with at Malacca ; and Dr. Tiraud states 
that it is common in Cochin China. 
This species frequents thick forests and appears to be more or less gre- 
garious ; it seats itself on the topnaost branches of high trees and makes 
short sailing flights after insects. Nothing is known about its nidification 
so far as I am aware. 
582. BAZA SUMATRENSIS. 
THE SUMATRAN KITE-FALCON. 
Aviceda sumatrensis, Lafresn. Rev. Zool 1848, p. 210, Baza sumatrensis, 
Sharpe, Cat. Birds B. Mas. i. p. 357, pi. xi. fig. 1 ; Hume, S. F. iii. p. 313 ; 
Hume ^ Dav. S. F. vi. p. 25 ; Hume, S. F. viii. pp. 83, 444 ; Gurneij, Ibis, 1880, 
p. 471. Baza incognita, Hume, S. F. iii. p. 314. 
Description. — The forehead and a broad but inconspicuous band from the 
latter over the eyes to the nape pale whity brown ; the shafts darker 
brown ; the crown, occiput, nape and sides of the neck rufescent buff, the 
feathers broadly centred with dark brown ; the crest black, narrowly and 
obsoletely barred, the feathers with pure white tips ; the inters capulary 
region and scapulars are a rich dark brown with a decided purplish gloss. 
All the feathers with an excessively narrow marginal rufescent or fulvous 
fringe ; on raising the feathers the rich brown with the purple gloss 
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