We have one silkie, one barred rock, two well summers, and one easter egger....all girls. One of our easter eggers turned out to be a roo. So six chickens all total. We put them all up in an enclosed coop 6x8 feet at night. I'm noticing a lot of feathers in there. They're only about 4 months old. Is the roo picking on them? Should he be kept separately at night? They were raised from babies together. He is getting teenager-y and chasing them around the chicken yard during the day. They run the enclosed run and the chicken yard during the day with access also to the coop.