The Hoatzin is a primitive pheasant sized, brown feathered bird which has lighter colored under feathers, blue faces, maroon colored eyes and spiky feathers crowning its head. It's head is quite small and its neck is quite large. The Hoatzin can be found mainly throughout the swamps of the Amazon rainforest and Orinoco Delta of South America and they are sometimes refered to as the 'stinkbird' as they have an odor like that of manure.
Hoatzin chicks have a special feature of claws on their wings which they use to climb trees while young. The only other known animal with this adaptation is Archaeopteryx - a dinosaur bird. Hoatzin - National Animal - Guyana