About two weeks ago we got 6 ex battery hens. They all seemed to get on well together apart from one that they all picked on. She is bigger than the other hens but has a very small comb which I am thinking may be the reason she is being singled out for bullying. The flock are now free range during the day but the bullied one goes off on her own and stays away from the rest of them. In the evenings, until bedtime, and at mealtimes we put them in a 15 x 16 ft pen but have had to build another house and pen for the bullied girl. This is within the main pen so that she can see the others but they can't get to her. Today she started mixing with the rest of the flock but as soon as they came back into the pen they started picking on her again. At the moment she is sleeping alone which I am not sure is best for her. I have seen other posts about bullied hens which have been really helpful and although I think things are improving I would really appreciate some advice on whether we should leave her to sleep on her own or put another hen in with her. I am reluctant to let her sleep with the other hens as I'm scared of what I might find in the morning!
Advice would be very much appreciated.