That's unusual, most of the time buzzards won't touch a yote around here. I've watched my cows stomp a coon to death, but never a yote. Seen them chase them, though.
I've found something interesting to mess with the local yotes, and amuse the neighbors. Whenever I shoot one, I tie the back feet together and hook it to the back of my four wheeler, then drag it around the fencelines of the place until the hide is pretty much gone. Once I'm done with that, I hang them in a tree near where the yotes cross/congregate - where they do their "come together" yipping rally about an hour or so after dark. It's pretty funny to hear the change in their voice the first time they sound off after finding their buddy in a tree all torn up, and most of the time we won't hear them again for a couple months after that. I figure it lets them know there's a bigger alpha around and they scatter for a bit. If nothing else, it amuses me.