I have one chicken that gets constantly pecked, (to the point of bleeding) by the other girls. We moved her to a tractor with a new friend for about six months and she /they did fine. We had to get rid of the tractor, and put her back in then main coop. She has been back in there for about 3 weeks, and they are at it again. They have pecked a big patch of feathers off her back by her tail, and it is bleeding. How do I get the other girls to accept her and leave her alone? There is only 5 of them with a huge coop and run, they also get to come out in the yard when we are home. Any ideas would be greatly appreciated! Btw, amerucauna is one getting beat up, by buff orps, and gl wyandottes.