This afternoon I went out and found one of our New Hamshire reds; 4 months old with the back of its hed pecked away, and a bone protuding when she sounds. as we were Dr. her we noticed both sides of her back hollowed out. Looking at her she appearead fine. I noticed the open wound while I was feeding, no animals can get to them, so it had to be the chickens themselves. Has anyone dealt with this before, Please help.