My chickens are in a stall in our barn. This stall is in the middle so it stays dark all the time during the winter. In the summer, the door is open and my chickens pretty much free range outside so no problem. I am wondering if chickens will die living in the dark? Or, would it just affect egg production? I have a small door off the back of the stall that they could go outside in an enclosed area, but the side of the barn its on, even if outside during the day, it's not sunny back there. I am considering changing to a stall on an outside wall and putting a window in. However, this is a better stall for us to use. Anyway, not considering egg production, is it harmful, cruel, or otherwise, for the chickens to live in basically the dark over the course of the winter? Note: I don't like leaving the door to their enclosed area over the winter as the wind appears to blow right in the stall which I would think is a harmful draft.