cooper’s hawk. 
11 
grouse which he had killed, though a larger and heavier 
bird than himself. Mr Cooper, the friend to whom we 
have dedicated this species, has recently favoured us 
with an accurate description of a specimen of a some- 
what larger size, shot in the early part of November, 
on the eastern part of Long Island. 
The male Cooper’s hawk is eighteen inches in length, 
and nearly thirty in extent. The bill is black, or rather 
blackish brown ; the cere, greenish yellow ; the angles of 
the mouth, yellow. The irides are bright yellow. The 
general colour above is chocolate brown, the feathers 
being whitish gray at base ; on the head, and neck above, 
they are blackish, margined with rufous, pure white 
towards the base, and grayish at the bottom, the white 
colour shewing itself on the top and sides of the neck, 
and being much purer on the nucha. The back and 
rump are the same, but the feathers larger, and lighter 
coloured, less margined with rufous, more widely 
grayish at base, and bearing each four regular spots of 
white in the middle of their length, which are not seen 
unless when the feathers are turned aside. The whole 
body beneath is white, each feather, including the lower 
wing-coverts and femorals, marked with a long, dusky 
medial stripe, broader and oblanceolate on the breast 
and flanks, (some of the feathers of which have also a 
blackish band across the middle,) the throat, and under 
wing-coverts ; the long feathers of the flanks (or long 
axillary feathers) are white, banded with blackish ; the 
vent and lower tail-coverts, pure white ; the wings are 
nine inches long, and, when folded, hardly reach to the 
second bar of the tail from the base ; the smaller wing- 
coverts and scapulars, are like the back, the quills 
brown above, (lighter on the shaft) and silvery gray 
beneath, regularly crossed by blackish bands, less con- 
spicuous above ; the space between the bands is white 
on the inner vanes at base; some of the secondaries 
and tertials are tipped and edged with rusty, and have 
more and more of white as they approach the body, so 
that those nearest may in fact be described as white 
banded with blackish. The first primary is very short, 
