OWLS AND DIURNAL BIRDS OF PREY. 341 
B.—Claws not much curved ; inner claw longer than hind 
claw. 
Ictinaelus malayensis (Black Eagle). 
IT.—Wing short ; primaries exceed secondaries by less than 
the length of the tarsus ; a long thin crest on the 
crown. Genus Spizaetus. 
1) Smaller; wing up to 15; lower parts plain or 
streaked but not crossbarred. 
S. cirrhatus (Crested Hawk Eagle). 
(2) Larger ; wing over 16; lower parts crossbarred., 
S. kelaarti (Legge’s Hawk Eagle). 
HIERAETUS FASCTATUS (Blanford, Vol. ITI., p. 343). 
NISAETUS FASCIATUS (Legge, p. 36). 
Bonelli’s Eagle. 
Description.—Adult : Upper plumage deep brown, the 
feathers with white bases; eyebrows and sides of neck 
streaked with white; cheeks and ear coverts streaked with 
brown ; sides of face white ; upper tail coverts with pale 
margins ; wing quills black, the bases of the inner webs 
mottled with white; tail feathers brownish-gray above, 
almost white underneath, with a broad band of dark brown 
at the tip, and irregular wavy bars of the same colcur near the 
base. Lower parts white with black-brown shaft-stripes of 
varying width ; thigh plumes and lower abdomen more or less 
pale brown with the same dark streaks ; under tail coverts 
with light brown crossbars ; wing lining black-brown marked 
along the edge with white. 
In some old birds the ground colour of the lower parts is 
buff, and the thighs and abdomen are darker. 
Young birds are lighter above, with pale edges to the 
feathers of the crown and nape; lower parts brownish-rufous 
vith narrow dark stripes ; the wing quills are more banded ; 
the tail is smoky-brown without the dark broad terminal band 
but with numerous, narrow, wavy, dark bars. 
Bill bluish-gray, darkening to black at the tip; cere and 
gape yellowish ; iris bright yellow or brownish-yellow ; feet 
yellowish or whitish-brown. 
5 6(21)20 
