Help my chickens are pulling each others feather out!!! We have 3 hens and recently they are ALL missing chunks of feathers. Two is missing them in the tail and right above where the tail is and the other is missing them under her wings. They all have bald spots and there are no feathers laying around so I am pretty sure they are eating them. We feed them a complete feed and also have tried giving them cat food and black sunflower seeds and meal worms as treats daily, but nothing is working. There coop is plenty big for 3 of them, and we have no idea what to do next. We have been applying rooster booster to the skin that is missing feathers. Any help or suggestions would be appreciated!!!