This strange-looking bird is found in regions like Indonesia and Malaysia, and it is sedentary. Local mythology holds it to be the guardian of the river that divides the world of the living and the underworld. It is a pretty large bird, covered with black feathers and a kind of hoof that goes from its crest to its beak. Males use it as a defensive mechanism, when fighting other birds, to protect their territory. That sort of hoof is made of ivory, which is highly valued in craftsmanship. That’s why this bird has been added to the list of critically endangered species.