OWLS AND DIURNAL BIRDS OF PREY. 377 
Habits, &c.—A mountain species frequenting wooded hills. 
It is crepuscular in its habits, and appears to feed on dragon 
flies, small birds, and lizards. 
ERYTHROPUS AMURENSIS (Blanford, Vol. III., p. 424). 
CERCHNEIS AMURENSIS (Legge, p. 119). 
The Eastern Red-legged Falcon. 
Description —Adult male: Upper parts and tail dark 
slaty-gray ; head, nape, back, and scapulars blackish ; quills 
washed externally with silvery-gray ; cheeks sooty-black ; 
ear coverts paler. Lower surface ashy-gray ; lower abdomen 
and under tail coverts deep ferruginous red; wing lining 
white. 
Adult female: Upper parts slate-gray; head, neck, and 
upper back brownish ; rump and tail paler ; teathers of head 
and neck with dark shafts ; rest of upper surface barred with 
black ; the cheek-stripe, the feathers below the eye, and a 
band running back from the eye black ; primaries blackish, 
the inner webs with many large oval white patches, except 
near the tips. Lower parts creamy-white or pale rufous, the 
breast with long black spots passing into arrowhead marks 
on the flanks and upper abdomen ; lower abdomen and lower. 
tail coverts unspotted ; wing lining white with brown spots. 
Young: Brownish, the feathers with indistinct pale tips ; 
lower scapulars, inner secondaries, rump, and upper tail 
coverts grayish with pale tips and bars of dull black ; tail 
gray with black bars; sides of face and throat white ; nape 
mixed with white ; lores and an indistinct moustache-stripe 
brown ; under parts white ; the breast with blackish central 
streaks to the feathers ; thighs and under tail coverts buffy- 
white, the former tinged with rufous. 
Bill fleshy red with a dusky tip; cere deep orange ; iris 
hazel ; legs orange-red. 
Length 11°5; wing 9; tail5; tarsus 1-1; mid-toe without 
claw 1; bill from gape *75. Females a little larger. 
Distribution.—Immature stragglers have once or twice been 
procured in Ceylon. It is a migrant breeding in Northern 
China, and wintering chiefly in East Africa, but occasionally 
in India and Burma. 
