I looked at the photo again (which I did not pay much attention to at first), and agree with Bryam. She is an older hen that has either been picked on by other hens or just bred quite a bit by a roo or roos. I would recommend supplementing her diet with some dry cat food (30% or higher in protein) to help with her plumage and general condition. Mine love it. Someone recommended it on here, and I have been feeding it as a treat, and my birds have never looked better.