Our ex bats are kept in a large coop and run mostly because I don't trust them not to wander out on the road and get squashed. We have three free rangers who are in an adjoining coop and run which they leave in a morning and return at night. The free rangers are fine and have no problems. The ex bats seem fine, they are happy, they scratch around and behave normally. Some still don't have all their feathers and some do, in fact two of them are the healthiest looking birds I'm even starting to think they are getting a bit too plump! There don't seem to be any bullying issues either.
Over the course of a couple of months we have lost three hens in separate incidents. Once we just went out and found one dead out in the run, the next was in a nest box. Third was clearly poorly with droopy wings so I brought her in and kept her quiet and she didn't make it through the night. Two others had the same treatment and were fine the next day.
I now have a very sick hen in the hospital cage as my daughter calls it. She is droopy and sad, won't drink or eat. No obvious signs of injury or prolapse or anything.
What could be causing it? What can I do to help her? I have been stringing a few drops of water in her beak every so often and she seems to respond but is disinterested in everything