I have a little Cochin named Ruby. She is shedding feathers which I believe is normal. However she feels really thin . She is eating and drinking and laying but still seems thin. Is this normal when shedding feathers for winter or do I need to be concerned. Advice please anybody. I also have a silkie (Margo) she seems fine. They are both free range and have the run of the garden during the day but are locked away safely from predators during the night.