The black thing is some kinda rag or something, and there is also some wire.
When I first saw it, I was like, WTF?!?!?! I mean, how often do you see a white deer with a huge rack like that, and mooselike antlers in the middle of a drivewway, with a truck driving towards it... I was afraid it was gonna freak and cut back accross the driveway to the woods when it was in the yard.