I have a buff orp that still has quite a few feathers missing on her back....the size of the palm of my hand. Looks like new feathers coming in, but it's going to start to get REAL cold here quick. Will she be okay? They have a nice coup and plenty of food, but I don't use heaters or anything like that. The coup is bedded thickly (and cleaned regularly).....no drafts in the coup either....but I'm worried. Can I do anything to help keep her warm? She is not acting cold yet, but I want to know if there is anything I can do to help before she does get cold. Thank you.