Hi, I'm looking for any help on figuring out what is happening to Gladys. She is eating, drinking and acting normal but is loosing feathers all over her body. She is also skinny compared to some of the other chickens. Gladys is one of my top hens as she is the oldest in the coop. Her and her BFF Oprah are my top and Oprah seems to be doing okay compared to Gladys.