Mine went through a very mild molt in the fall. I put starter/grower feed out for them and I make an anti-cold concoction for them that's got added protein. (Boiled eggs, ground cayenne pepper, minced garlic, cinnamon, and oregano. None of our hens got sick this year and the molt was very mild. Now, it's seems they are molting, big time. I have one of my reds that looks like a zombie chicken and others have bad looking tail feathers and some balding on their breasts and butt. There are no signs of mites or lice. We check them for mites and lice every two weeks when we dust them with DE. I also spread DE in all the places they lick to dust themselves.