We have 4 silkies (0ne regular size roo and 3 bantam "hens"), a buff Orpington hen and a barred rock hen. Over the summer we thought we had them successfully integrated as one flock and then in October our roo started " attacking " one or more of our silkie bantams. At one point he had one pinned to the ground and she was squawking like crazy. It looked like he would kill her so we separated them all into two separate flocks. He is the oldest in the flock at about 7 months with the bantams being 5 1/2 months. While this was happening, they were living in our garage while we built our coop. When we finished our coop, we tried to house them together with a gate separating them. They didn't stay separated and the BR hen and BO hen seemed to pick on the little ones too, keeping them from the food dishes and pecking at them. We have two nice size food dishes so overcrowding shouldn't be an issue. We decided to bring the bantams in and they have been in our basement for about a day. I'm kind of at my whits end and could use some BYC wisdom here. What do you all say?