I have one hen who is being badly pecked. On Saturday I opened the coop and found the back of her head bald and bloody. We seperated her from the flock and I tried to reintroduce her today as she was scabbed over and looking good. I didnt intend to let her stay, just go out for a little while to scratch and get some fresh air. Well, I cleaned the dog kennel she was in then went to check on her. They had reopened the wounds. So shes back inside in the kennel. I understand they probably saw the red and started pecking again, but what caused it in the first place? We have 15 chickens in a 12x10 coop that free range daily. Is that too little room for them? They are about 6 months old are just starting to lay this month (6 have started). What can I do to prevent this behavior? I'm not even sure who our lead hen is. I spend a lot of time out there but none stick out more than the others. Thanks!