The bird in the video is a manakin, a species whose name comes from the Dutch word for little man, mannekijn. It’s easy to see why videos of the wild mating dance crop up on YouTube, complete with lively sound tracks. This one’s my favorite.
If you want to know more about this bright little bird, Wikipedia is a good place to start. With all the links to species and sub-species, you can spend hours reading about this relative of our drab sparrow. Better yet, go to Mexico or Trinidad and see them for yourself.