I have a 4+ year old French Black Copper Marans who seems puny. The feathers around her comb and head are ruffled straight up as if they had some kind of hair product on the them. She's lethargic as well. This poor girl has a prolapsed crop that has always sagged seriously. She could practically use a sling. Anyway, haven't had any illnesses in any of my girls for several years so I guess there's something coming for this girl. I'm wondering if it's a sour crop issue. I wish I could do surgery on her.