Hi, I have two hens who have lost all their feathers on their breast. One of them has a permanent pendulous crop all year round and so I chalked the loss of feathers on her breast down to her crop being stretched so much. However, the other one has only recently lost all her feathers on her breast and the skin exposed looks quite red and sore. She doesn’t have any problems with her crop but has recently gone through a moult yet all her feathers have come back besides those on her breast. I treat the coop heavily with mite spray and DE. I was just wondering if this sounded like anything familiar to anybody here? She appears healthy in herself but as I say I’m quite worried that the skin looks quite sore.