I have a white leghorn rooster and a variety of hens. With the bo and rir hens he is great. Plus the speckled feather footed breed so 6 hens no problem but have 4 black hens same size as others and he has started to peck them running them away from food pulling out feathers and chasing them around the coop. I have seen him mate with them but one she will squat down and he is just mean to her I don't know what to do. I have 8 white leghorn chicks 9 weeks old is this normal of them. Please help. I am still fairly new to all this