If you thought that maybe the Horned Guan was a guan with a horn, then I'm afraid you're incorrect. Not only is it not a real guan, but I find it quite difficult to call that red thing on its head a horn. Rhinos have horns. This thing has a lawsuit.
|Image: Stormtrooper WB|
The Horned Guan is all alone in its very own subfamily, having evolved for tens of millions of years in a lineage separate from all the other cracids. It's now the last representative of its part of the family tree. Judging by that lump on their noggin, they appear to fall head first from this tree on a regular basis.
Falling from trees isn't a great idea when you live on a mountain. Horned Guans come from the montane cloud forests of certain parts of Central America. They can be found at altitudes of up to 3,350 metres (11,000 ft), where they enjoy a diet of fruits, flowers and leaves along with the occasional insect snack.
Oh, and case you're wondering, both males and females have that extraordinary lump on their head. It isn't a weird thing the males use for courtship. It's just a weird thing.