254 African Zoology. 
Genus GYPAETUS. 
Bill large, robust, compressed on the sides, rounded above and 
hooked towards the point; lower mandible short, straight, and 
obtuse ; cere basal, covered with strong hairs directed forwards ; 
nostrils obliqu2, oval, concealed by the down on the base of bill; 
top of head covered with down; tarsi short, thick, feathered ; 
claws robust, sharp, the inner and hinder ones much curved ; 
the third quill feather the longest; tail composed of twelve 
feathers. 
Gypaetus barbatus, Cuvier. Bill black; head and cervix 
dirty sallow white; circle round the eyes, and space between 
them, and bill, covered with a deep-black hair, as well as each 
side of lower mandible, at base, also some similar hair under 
the bill, which is in the form of a large tuft pointing forwards; 
irides of two colours, viz.: yellow towards pupil, and fine red 
towards circumference. Front and part of sides of head behind 
eyes, as well as base of lower mandible, covered with a dense 
white down; rest of head and cervix dusky white, faintly 
tinged with rufous; back and shoulders dusky, inclining to 
black, the centres of the feathers being more or less distinctly, 
an obscure cinereous black, and the edges clear black, the shafts 
white. Primary and secondary quill feathers, together with 
the tail, more or less greyish; throat, breast, belly, and thighs, 
clear or dull rufous; toes somewhat granulated, and dusky 
black. Length about three feet. 
Inhabits Africa and Europe. 
Vultur barbatus et barbarus, Lath. Index Orn. Vultur 
aureus, Briss. Orn. Arend of the Cape Colonists. 
Fam. FALCONIDA. 
Head entirely, or in a great measure, covered with feathers; 
bill strong, hooked, and furnished with a cere; border of upper 
mandible even, or toothed; claws stout, very acute, much 
curved, and retractile. 
Genus AQuUuILA. 
Bill very strong, straight near base and curved towards the 
point; cere hairy; nostril elliptical and transverse; the third, 
fourth, and fifth quill feathers the longest; tarsi covered with 
downy feathers to the toes; tail composed of twelve feathers. 
Aquila nevia, Linn. Body, head, wings, and tail, shining 
brown of different tints, lighter towards the rump and thighs; 
the feathers of the tarsi and under tail coverts are light brown ; 
tail tipt with light rufous; bill black; eyes, cere, and toes, 
yellow. Length twenty-two inches. 
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