I have 3 hens and a roo. All are different personalities and have been all together since last fall. I have not had any problems with bullying until now. My Barred Rock hen has been constantly beating up my lavender orpington. My orp doesn't come out of the coop at all and is so nervous and just sticks her tail into the air when you come near her. I take her out of the coop so she will eat but my rock will come and attack her. She stopped laying and just runs and hides back into the coop. I have separated her as of today but don't really have a good place to keep her. Please help! What could the reason be that she is getting picked on? What should I do?