Our Drake is ripping feathers from 2 of our girls to the point of bleeding, then reopening the wound. We have separated those 2 from the group and now he has started on another... We thought with time he would accept them but it's been a while. If we separated him, he will stop at nothing to get back with the flock, to the point of hurting himself. I'm asking for ideas on how to remedy this behaviour as we love him otherwise but can't allow this to go on.