Hi all. Apologies in advance for a question that surely has already been asked. I just can't seem to find it. Here's what I've got: a year-old buff orpington hen who has been skinny for a long time, and who is gradually getting skinnier and skinnier. She is now about the size of a pigeon and looks horrible. Her flock-mates are thriving. They all have access to pasture, clean water, reasonably clean and well-ventilated coop, and a buffet table of feed, scratch, oyster shell and grit. None of the birds have any external parasites. Like I said, the other birds look great. No one picks on this skinny bird, and she acts like she's perfectly healthy. Her butt/oviduct look normal. But her body looks just awful. Based on how gaunt she is, I expect her to drop dead at any moment. Any experiences out there with one hen who wasted away while the rest of them were big fatties? Thanks!