The Black-billed Turaco looks similar to several other green Turacos, but has a black bill instead of red.
It is native to east-central Africa.
Schalow's Turaco is distinguished by its exceptionally tall, white-tipped crest (longer than the similar Livingstone's
and not so graduated). It is native to forests of southern (Angola to Zambia) and East Africa and the crest feathers
are worn by Masai tribesmen. The plumage looks quite dull green under the trees but the wings and tail are iridescent
turquoise and purple in the sunlight (Livingstone's tail is blue-green rather than purple).