Please help! A couple of days ago our white leghorn rooster- 9 months old starting picking on and pecking my buff's head from the comb down the back to the neck. She is scared and is hiding from him- they are all free range. Last night she came out and laid down and allowed him to peck more. They were even separated by chcken wire. What is going on and what should I do? I have 20 adult hens and 24 10 week old ones. I have two other buffs identical to this one but he only picks on her. Should I catch her and put her in a dog cage?