I had 6 chickens - 2 black sexlinks, 2 barred rocks and 2 reds. One of the reds was being terribly pecked. We tried the bag balm, blue kote, balmex etc. we seperated her until she healed and slowly reintroduced her. Once reintroduced the other girls brutally attacked her. We had to give her away to a home with a rooster and she is doing very well with over 20 hens and a rooster. All seemed well in the coop once she was gone. Suddenly I am noticing pecking going on again. 1 sexlink seems to be pecking a barred rock and the other red. I tried suggestions of white vinegar in the water, giving more things to peck, etc. and nothing seems to be helping. Why is this happening and how can I prevent the loss of another hen?