We converted a storage building into a coop. The chicks roam free in a fenced area during the day. We lock them in the coop at night for safety. There are not windows in the coop, so it is pitch black until I come in and release them the next morning. They don't seem to use the roosts and are all huddled together when I come in in the mornings. Then, when they can see the light coming in from the open door, they race to the feeder like they couldn't see it all night or something. I read a little about keeping a light on to increase egg production, but we don't care about that. Ours are just for fun. I was wondering if I am supposed to keep a light on just for them to see or if it is necessary to add a window? Any advice would be greatly apprecaited!