, South Africa The lappet-faced vulture is a very large species, ranking as the longest and largest winged vulture in its range, behind the closely related
cinereous vulture, although some co-occurring
Gyps vultures tend to be heavier on average, especially the
Cape vulture and
Eurasian griffon. This species measures around in body length, with a wingspan of . Among the standard measurements, the
wing chord is , the
tail is and the
tarsus is . Wild vultures of the subspecies
T. t. tracheliotus range from and in
East Africa, average only . On the other hand, captive vultures of the larger
T. t. negevensis subspecies weighed in males and in females. and
Ruepell's griffons, illustrating its size Overall, the lappet-faced vulture is blackish above with a strongly contrasting white thigh feathers. The black feathers on the back of African vultures are lined with brown, while Arabian birds are dark brown rather than black above. The underside can range from pure white to buff-brown. Like many vultures, it has a bald head. The head coloration can range from reddish in southern Africa to dull pink in more northern Africa to pink on the back of the head and gray on the front in the Arabian Peninsula. The combination of the colorful head and
fleshy folds on the side of it are distinctive. The bald head of the lappet-faced vulture is advantageous, because a feathered head would become spattered with
blood and other fluids when feeding, and thus be difficult to keep clean. While flying, lappet-faced vultures have large, broad wings held with the front edges held parallel and slightly pointed, serrated-looking wingtips. Compared to the somewhat similarly marked
hooded vulture, it is considerably larger with a more massive bill and can only be confused at a great distance. The
Gyps vultures are generally much paler, with less white lining the wings and more bulging secondaries. The
cinereous vulture (which may overlap in range in the Arabian area) has a similar body shape but is all dark, with no contrasting plumage. ==Behaviour==