278 African Zoology. 
feathers white. Bill dark horn-coloured; cere and base of 
lower mandible yellow; tarsi and toes yellow-brown; claws 
black. Length two feet four inches. 
JInhabits South Africa and Madagascar. 
Falco gymnogenys, Temm, pl. 307. Gymnogenys Madagas- 
cariensis, Lesson. 
Obs. Two specimens from Madagascar which I have examined, differed 
only from the South African one in my possession, by being smaller and 
of a lighter colour. They were probably male birds, and mine is a female. 
Fam. ACCIPITRINA. 
Bill convex, curved from the base, hooked, upper mandible 
with a more or less distinct festoon on its edge, lower mandible 
shorter and obtuse; nostrils almost oval; tarsi nearly or com- 
pletely naked, slender ; claws large, very sharp ; wings shorter 
than the tail, fourth quill feather the longest. 
Genus Acctrrter. ay. 
Tarsi generally slender, scutellated; body slender; claw of 
inner toe very strong; nostrils rounded, transverse ; wings ex- 
tend a little beyond the base of tail, the latter rounded, gra- 
duated or slightly forked. 
Accipiter monogrammicus, Lesson. Ashy grey ; throat white 
with a longitudinal black line; belly finely striated with brown: 
tarsi and cere reddish. 
Inhabits Senegal. 
Falco monogrammicus, Temm. pl. col. 314. 
Accipiter polyzonus, Lesson. Bill and cere brown, the base 
of the lower mandible, and the festoon of upper, yellowish ; a 
narrow space round eyes naked; plumage above an uniform 
ashy brown; throat whitish, finely rayed transversely with 
brown ; anterior part of neck, breast, and belly, dull white, 
regularly rayed with transverse brown or pale rufous bars; vent 
and under tail coverts white, with some fine transverse brown 
lines ; wing feathers light brown, banded with dark brown; 
inner vanes marked with white towards quills. Tail long, even 
or slightly forked, beneath ash-white with transverse brown 
bands, above brown with darker transverse bands, and the 
inner vanes of central feathers with two or three narrow white 
bars ; the tips of all the feathers white. Tarsi long, and with 
the toes yellow; claws black. Length sixteen inches and a 
half. 
Inhabits South Africa. 
Falco polyzonos, Temm. 
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