Ok, the hen died today.
I read over the websites given, and I think it might be Blackhead, because I lost two turkeys to that a couple of years ago. I was under the impression that while chickens can carry it, it didn't affect them so much.
Any ideas for prevention that don't require moving?
chicknmania: I used Ivercide to deworm them.
Poison Ivy: Thanks for the link, a couple of the bacteria and one virus listed might fit.
Juliechickens: I will talk to my vet tomorrow, but his stock of chicken meds is usually limited. As for whether they got into something, I would almost think...
Hi, new user here, registered because I can't find a good place (quickly) where I can search diseases by symptom instead of name.
I have a hen who is maybe the fourth bird to come down with something I've never had before. She, like the others who had it, has gone from healthy to super light...