One of my hens always has a dirty bottom. I have washed it several times and it still looks dirty-ish. I did notice her poop is solid, but has some clear water. The feathers on her belly, closer to her bottom, seem to be broken off too. She eats very well, drinks well and doesn't act sick. No discharge from her nose and she's still a little young to lay any eggs. I think next month she should start. I added a couple pictures to show what I am talking about. Any ideas?