Hi to all- new member of byc, but have frequented site for a year now. 22 girls of various breeds, 4 boys. (photos at some point-stay tuned) ***Looking for help solving problem: 3 white crested black polish all suffer from self-pecking (or mistaken identity?) bloody tail feathers and completely backless of feathers now not mites or lice- every other bird in coop is fine. (even other polish-all white, buff laced) have tried extra protein: eggs, bacon, cheese. tried busy work: squash, melons, scratch blocks, hay bales tried blue cote for relief- thought we turned a corner and see new growth, but today have a chicken in the house in solitary confinement. need suggestion to stop problem or at least stop bleeding so she can go back to coop. Many thanks in advance!