Hello, I have 9 Rhode Island Reds and a rooster. I was in the run with them when I noticed that one of the hens was missing lots of its neck feathers. Once I saw this i examined the other 9 to find that 2 others also had this problem. I assume its from the rooster breeding. I was wondering if there was a way to prevent this. I REALLY don't want to kill the rooster because I need him for having fertilized eggs (I plan on selling chicks) Thanks for the help!