My little cross beak seems to be going to roost with an empty crop and I know she feels the cold more than the other chickens. They will stay out all day and I have caught her hanging around in the coop sometimes. She isn't laying and I don't expect she will but I hate to see her roost on an empty crop. I was thinking I could perhaps give her a supplemental feeding at roost time. I've seen the vet do it once but I'm afraid to try it based on seeing it done once. I bring them oatmeal and yogurt with boss and mealworms sprinkled on it in the morning and she eats that first thing. I'm not sure why she doesn't fill up on layer crumbles before bed.