I have 23 hens and 1 rooster. They are in a 10 x 12 pen and have at least double that for a run. They go out in the run daily and are out there for the majority of the day. My rooster is getting pecked terribly by the hens. His comb is often bleeding and they have pecked off several of his points. I’m not sure what to do. He is separated and I sprayed him with Vetericyn. Any tips on how to stop the hens from pecking his comb or why they are??