i had a chicken that passed away, oh gosh, a couple weeks ago. Wrapped her in tissue paper and buried her several feet deep out in a side yard i rarely frequent. Put a large rock on top of the grave. i know i saw that rock in place a few days ago. Then this morning i went out there and found something had dug up the ground, tissue paper and feathers everywhere. Most of the chicken had been eaten, but not her head. i think the possible culprits are possum or perhaps a raccoon. We don't have minks, bears, foxes, or coyotes.