While I take care of a bird recovering from flystrike indoors, one of my Rhode Island Reds has been sick lately. I recently isolated her in a rabbit hutch with food, and water that contained terramycin. Unfortunately, I don't know how to help her because I have no clue what is ailing her. Here are the symptoms: -Very light, maybe malnourished -Weak appetite -When pecking food, sometimes just pushes the grain around with beak or drops food. (I have since given her mashed-up food.) -Before isolation, would sleep on floor instead of roost -Doesn't hold wings up tight, they droop -Missing feathers around base of neck and chest that don't seem to be regrowing -Makes soft staccato noises when approached, like that of a broody hen but quieter. She shows no signs of broodiness, and might be spent. -Generally lethargic, though might be in part due to heat -Tail droops down -No sign of physical injury Does anyone know what's wrong with this chicken? it would be nice to get this poor bird healthy again.