We sent out this morning to find 4 hens dead in the pen and 1 missing. Out of the 4, 1 had a broken neck, the other 3 had small half dollar sized holes in their backs. There is also 1 wounded with the same half dollar size hole on her back. No sign of anything going under the wire anywhere at all. We live in SC. We have seen a few hawks now and then, we do have opposuums as well. But they were caught to eat by the looks of them. Any thoughts?