Our chickens have a coop and a free range yard surrounded by split rail fence and welded wire. Something killed just one chicken lifting the body over the fence and eating only the head. It didn't kill the other 9 chickens and it didn't dig under the fence -it went over. From where the body sits, just a foot off the fence line, the predator appears to have been eaten the chicke while sitting on the fence. We are in western Colorado so possum and weaseal are not the culprit. It seems a dog or cat or raccoon would have killed them all? A fox would have dug under fence and not climed over. Do Hawks only eat the head? We have muskrats. A skunk would have had to go under the fence and not over. It happened during the day so owls are ruled out, unless it was at dawn. Any other thoughts?