Hi. My daughter's favorite hen, an 18 month old Brahma, is losing feathers at an alarming rate from her rump area. The other three hens (all different breeds) aren't losing any. She also, the hen, not by daughter, made a very strange colored poop yesterday. She seems fine, we don't seem to be getting fewer eggs. Any thoughts? Are these things unrelated? I really want to avoid a trip to a vet. Thanks so much.