FALCONID.4—BUZZARDS. 153 
LONG-LEGGED BUZZARD. 
Buteo ferox (Gme/). 
Adult : Crown, nape, throat and chest creamy-buff, washed 
with rufous, and streaked more or less broadly with dark brown ; 
feathers on nape very open, showing white bases; feathers of 
upper parts generally dark brown, margined with rufous-brown ; 
primaries almost black, washed on outer webs with grey, and 
marked on inner webs with white ; zaz/feathers creamy-white or 
pale rufous-brown, more or less distinctly barred with brown ; 
chin whitish; abdomen and flanks chestnut, more or less 
mingled on former with buff or pale rufous feathers ; bill and 
claws blackish ; cere and legs yellow ; irides tawny-brown. 
Length 22 to 25 inches; culmen 1°25; wing 16°75 to 18°75; 
tail 9°5 ; tarsus 3°5 to 4. 
Young: Darker above than adults ; tail-feathers ashy-brown, 
fulvous tipped and shaded with ashy-grey ; abdomen rufescent- 
buff, marked with brown. 
Distribution: Found in South-eastern Europe, Western- 
central Asia and North-eastern Africa. 
Habitat: More open localities than B. vulgaris as a rule, 
otherwise similar. 
Note.—This species exhibits considerable variation in colour, some being 
much paler, and others again much darker, than the description given 
above. Very old birds appear to become almost entirely chestnut 
beneath. 
Genus ARCHIBUTEO. 
ROUGH-LEGGED BUZZARD. 
Archibuteo lagopus (Gme/). 
Adult : Crown and neck creamy-white, copiously streaked 
with dark brown; upper tail-coverts and basal half of tail- 
feathers white (the former blotched with brown) ; ¢az/-feathers 
white, tinged with greyish towards tip, and crossed by four or five 
broad brown bars ; rest of upper parts shaded brown ; some of 
feathers of interscapular region margined with rufous-buff; pri- 
maries blackish-brown, the outer ones tinged with grey on outer 
