I am a brand new chicken owner. I bought 6 hens from a local flea market a week ago. All seemed to be happy and healthy. Some have layed eggs. Anyways......this morning one of the white leg horns is just sitting in the coop with her eyes shut. I can't get her to open them. She just sits there, won't eat or drink or even try to run away from me!!! I separated her from the rest so they wouldn't hurt her, I don't know what to do next. Any suggestions as to what might be wrong and what i should do about it????????? Thanks