We have eight Rhode Island Red hens and one of them has had prolapse problems in the past that come and go and now she is losing feathers all over her wings and a lot on her chest. I don't think she is molting - she is not a year old yet. Our chickens did free range during the day but we had to stop that when a fox took one our chickens last month. They are now in a protected run area. I am wondering if they are bored and are picking on this poor chicken. Any ideas on what we can do for her?