Today I walked outside and let my chickens out of the coop. They free range durning the day, this chicken layed her egg at about 8am, then I took a nap and woke up again at 12pm. Then I walked outside into the woods and found my chicken dead. Only the head and guts were missing and all the meat was still intact, there was small puncture wounds in the breast and feathers everywhere. Any idea what did this?