I have a wellie hen who has spent the last week alone in the coop on the roost. She has one eye shut, and looks like shes molting. She really comes to life if I try to get close enough to get a good look. I did catch her once over the weekend and gave her a good going over. Her comb and face are nicely red, no bugs or spots or anything weird looking. I checked her really well for bugs, mites, fleas, leg mites....didnt find anything. Her butt is clean, she's not fluffing herself up or hunching up looking all sick.... But she wont come out of the coop and her tail feathers are coming out, and her one eye is shut. It looksl ike it might be a teeny bit matted shut but its so miniscule that I cant even tell if its really matted shut or not. What could she be up to?