Alright this is my 2nd winter and I would appreciate it if people gave me ideas on how they keep their chickens warm. All my birds have big combs so frost bite is a factor. We have little windows of screen that run along the top of the coop and it is very drafty. Last year we made boxes with lights in them but I only had 5 chickens now with a ton of em idk how to keep em warm. Can someone post ideas.