Ive been wondering, how much of rooster aggression the result of genetics? So far my dominique is the only rooster I can say is entirely not aggressive, except to roosters that are being jerks. Aside from him I have white rock, bielefelder and slw roosters. They were all hand raised, came from different breeders, and I spent much time with them, and every single one of them so far, at absolute best, has to be kept away from hens (the white rocks really arent too aggressive but are simply too rough with the girls) and at worst has had to be punted like a football followed by a swift appointment with the freezer. So far it seems to me that from these breeds I just cant expect to find a gentle giant like my dominique.