Ivory-Billed Woodpecker:
But it may not be extinct! There have been sightings in Arkansas, Louisiana, Florida, and so on recently. I read a book about this by the dudes at the Cornell Lab of Ornothology. I've seen stuffed ones - it's a beautiful bird. There's a video of a sighting from 2004:
http://www.sciencemag.org/content/vo.../1114103S1.mov
I don't know, you've got to be an incredible birder to tell what that is.