One of my girls, Oreo, is very sick. She has lost a great deal of weight and feels like skin and bones. She has plenty of food and water too. I see her eat a tiny bit and drink a little. But most of the time all she does is sit by herself. There is no discharge from her nose and she doesn't sneeze either. She is not active either, not even when I offer scratch, worms or rice. Her crop seems like it has a very tiny amount in it as well. I have added a couple pictures to show how she stands all the time, like a seagull. Anyone have an idea what could be wrong? I have her in a small pen by her self. I have done the worm thing about 6 months ago and I have also been treating with tetracyclene I got from TRS. None of my other girls are like this. Any ideas what could be wrong with Oreo? She is also about 6 months old. I know the front of her looks puffy but that is just feathers.