Lesser yellow-headed vulture (Cathartes burrovianus)
The lesser yellow-headed vulture closely resembles the greater yellow-headed vulture (Cathartes melambrotus), and overlaps with that species in northern South America. Both species are largely black with yellowish heads. The lesser can be found from eastern Mexico south through Central America, and patchily in South America east of the Andes and south to Uruguay. It is widespread in open areas, while the greater is confined to large areas of unbroken forest, primarily in the Amazon Basin. The lesser has less feathering on the neck, a shorter tail, and browner plumage tones than the greater. The feeding and breeding behaviour of this species is likely similar both to that of the greater yellow-headed vulture and the widespread turkey vulture (Cathartes aura), although it may be less likely to soar high overhead than either of those species. It probably locates food largely by smell, as do the other species in the genus. A nest in a tree hole was reported from Surinam.