About two nights ago, something attacked our chickens. It attacked one and killed it and when we found it the next morning, it was only feathers and the ribcage, because the other chickens had eaten it. Another chicken had a nasty wound on its upper neck, and the other chickens were pecking it. We gave that one away. Last night, my brother and I heard the chickens squacking and went out there. Something was in the run, and somehow it had gotten in - probably through a hole in the wire. We used to have 30 chickens, but now we have only 15-20. I think it's a raccoon or fox that's getting them. Any ideas how to get rid of the predator? Thanks!