hello! I have a Wyandot rooster in a coop with three hens. We have never had any problems but just this week I noticed that two of the three hands have a few feathers missing in one spot on their head. I know that he grabs the spot when he is mating them. The hens are show birds, so I don’t want them missing any feathers. How can I stop him from pulling out any more feathers? I know that they will grow back.