52 
THE GOLDEN EAGLE. 
Adult Female. 
Wings long ; the fourth quill longest, the third almost equal, the second 
considerably shorter, the first short ; the first, second, third, fourth, fifth, 
and sixth abruptly cut out on the inner webs ; the secondaries long, broad, 
and rounded. Tail rather long, ample, rounded, of twelve broad, rounded, 
and acuminate feathers. 
Bill light bluish-grey at the base, black at the tip ; cere and basal 
margins yellow. Eyebrows and margins of the eyelids light blue ; iris 
chestnut. Toes rich yellow ; claws bluish-black. Fore part of the head, 
cheeks, throat, and under parts deep brown. Hind head, and posterior 
and lateral parts of the neck light brownish-yellow, the shafts and con- 
cealed parts of the feathers deep brown. The back is deep brown, glossy, 
with purplish reflections ; the wing coverts lighter. The primary quills 
brownish-black, the secondaries with their coverts brown, and those next 
the body more or less mottled with brownish-white, excepting at the ends; 
the edge of the wing at the flexure pale yellowish-brown. Tail dark- 
brown, lighter towards the base, and with a few irregular whitish mark- 
ings, like fragments of transverse bands ; its coverts pale brown, mottled 
with white at the base, and paler at the ends. The short feathers of the 
legs and tarsi are light yellowish-brown, each with a dark shaft ; the outer 
elongated feathers dark-brown ; the lower tail-coverts light yellowish- 
brown. The base of the feathers on the upper parts of the body is white, 
on the lower pale dusky gi’ey. 
Length 3 feet 2 inches ; extent of wings T feet ; bill along the back 2f, 
edge of lower mandible 2J ; tarsus 41, middle toe and claw 4£, hind claw 21. 
The extremities of the wings are 1 inch short of that of the tail. 
Genus IV.— HALIAETUS, Savigny. SEA-EAGLE. 
Bill rather short, very deep, compressed ; upper mandible with the dorsal 
outline nearly straight at the base, beyond the cere decurved, the sides slop- 
ing, the edges nearly straight, with a slight obtuse process, and a shallow 
sinus close to the strong trigonal tip; lower mandible with the dorsal outline 
slightly convex, the tip obliquely truncate. Head large, oblong, flattened 
above. Nostrils oblong, oblique near the ridge. Neck of moderate length. 
Body very large. Feet rather short, very robust ; tarsi roundish, covered 
anteriorly with transverse scutella, posteriorly with large, laterally with 
small scales ; toes robust, free, scutellate above ; claws large, curved, rounded, 
flat beneath, acuminate. Plumage compact, imbricated ; feathers of the head 
and neck narrow and pointed ; space between the bill and eye barish, being 
