Birds. 309 
dusky greenish yellow; eyes dark brown; legs and toes yellowish 
white; claws a dark horn-colour. 
Inhabits South Africa. 
Falco chiqueroides, Smith. 8S. A. Quarterly Journal, vol. 1. 
p. 233. 
Falco concolor, Temm. Male,—Bill black; cere and legs 
yellow; plumage ashy grey; tail finely banded with a paler 
tint, and each feather shghtly rayed longitudinally witha deeper 
colour than that of the body. 
Female,—a dusky lead colour. 
Inhabits Senegal, Barbary, Egypt, and Arabia. 
Falco rupicolus, Daudin. Bill bluish black towards tip, 
bluish white at base ; cere yellow ; eyes brown ; head, together 
with the back and sides of neck, dull blue-grey, each feather 
marked along the centre by a fine longitudinal black streak ; 
interscapulars, back, shoulders, and scapulars, deep rufous, 
with irregular or somewhat triangular black spots ; chin tawny ; 
breast rufous, variegated with longitudinal black lines ; belly 
rufous, with black spots; vent and thighs tawny, without 
variegations. Primary and secondary wing coverts black, with 
irregular tawny-white transverse bands; primary wing feathers 
black, the inner vanes nearly completely crossed by numerous 
white indentations ; secondaries blackish, both vanes crossed by 
irregular rufous bands. Tail dark bluish grey, with seven or 
eight black bands, the last nearly an inch in width; on the 
three outermost feathers of each side the black only appears 
upon the inner vanes ; all the feathers broadly tipt with white. 
Legs and toes yellow; claws black.. Length of male twelve 
inches, of female fourteen inches. 
Young.—Head and neck rufous tawny, with indistinct longi- 
tudinal black streaks; back and shoulders light rufous, with 
large irregular or triangular black spots; chin nearly white ; 
throat ight tawny rufous, with irregular streaks like those on 
the head ; belly of the same ground colour as breast, and 
streaked or spotted before, behind like the vent and thighs, 
without variegations. Wing feathers all distinctly tipt with 
white. ‘Tarsi, toes, and cere, dull yellow. 
Falco rupicoloides, Smith. Head, neck, back, shoulders, and 
scapulars, pale tawny, clouded with pale rufous ; the head and 
neck variegated with longitudinal black stripes; the back, 
shoulders, and scapulars, with broad brown transverse bars ; 
rump brown with blue-white bars. Throat and under parts a 
pale fawn-colour, the breast and belly with a few brown stripes ; 
flanks rayed with brown. Quill feathers brown, inner vanes 
banded with pale rufous. Tail brown, with about six bluish 
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