Hello,we rescued a hen from a meat farm about a month or two ago and we have a laying den inside our coop that we’ve been keeping her in. But recently when letting her out my roster still attacks her(brutally until she bleeds) and just yesterday he attacked my son.so I separated him from the flock and now all my hens and ducks get along.what should I do? Clearly he can’t get along with the rest.is there a reason he still won’t accept any newcomers?what should I do from here.(my rooster is a Rhode Island Red)