I have 2 Lohmann brown hens who attack 2 other barnevelders hens. 2 days ago I have separated them by putting the bullies in a temp house inside my garage. For the separation method to work and alter the pecking order, do they need to be out of sight of each other completely or it if ok for them to see each other on other sides of a fence. I just feel horrible about locking them up and them not getting an outside run time. They don’t know they’ve done anything wrong.