We also had a similar creature here in the southwest for many years that I beileve is now extienct. Haven't seen one in the wild, just postcards at airports and both head and full body mounts for sale.
I am talking about the Jackalope. It's a crossbred jackrabbit/antelope. Must have been hunted to extinction for horns and meat cause I haven't found any carcasses out in the desert like you would see if they were poisoned or something.