fluffed up feathers

five days ago i noticed my female button quail who is a year old was fluffled up in a corner and sleeping most of the day, i have been giving her corid and i seen small improvement but shes losing a lot of weight now shes super thin but she still eats here and there, not much. shes still...

My 4 year old black Australorp, Polly, has suddenly turned really nasty. Her whole behavior is off. She is clucking constantly where she has generally been quite a quiet girl. She is frequently fluffing every feather on her body to stand on end, like hackles on a dog - see attached pic. It's...

I have a black australorpe that often struts around with her feathers all fluffed up like miniature turkey. She clucks a lot and, lately, she has exhibited brooding behavior. I think she has issues, but I don't know what they can be. Any ideas.