My girl developed these sores a few months ago. At first I thought another bird was pulling out her feathers but now I think they are too symmetrical to be that. Any advice on what it is and how to treat are most welcome. ***I've been using the blu kote on the bald spots for about 6 days now. It's difficult to see if anything has started to grow yet but I don't think anything is coming in. She definitely does not enjoy getting sprayed. Her eggs continue to be soft. I've added yogurt and apple cider vinegar to her diet, well all of the birds' diet and I gave them tuna fish. Since that is expensive is cat food a cheaper alternative for getting them to eat more protein? I need to break the cycle of her broken eggs because it's attracting bugs and sticking to the belly of my broody hen. It seems I have a vicious cycle going on here. I also bough the vitamins that were recommended but once I put them in the water dispenser the birds hardly drank the water. Is this common with treated water? I feel like I am in over my head. My only saving grace is I checked all the girls and no one has any mites or lice and their feathers look clean.*** Thanks again for any input or advice you may have.