Crested Caracaras are related to falcons but act like vultures. They have a very cool behavior that is depicted in this original design. Crested Caracaras have a special social vocalization which sounds like a rattle. This unique more... sound is given in conjunction with the throwing back of the head. This is called the head-throwback display. If you've never seen it in a live bird, no worries, just check out this original Birdorable design. It looks JUST LIKE THIS!