My almost 6 week olds (Monday) have been outside for the last 2 weeks. They have a nice coop and a run that is enclosed on all sides including top and bottom. At night I close their coop. I've been leaving the heat lamp on in the coop at night. Temps at night in the 20's-30's. The chick feeder and waterer has been in the coop but now I now have a heated waterer and hanging feeder that stay outside in a protected area. Should I still put food and water in the coop at night when I close them in till morning? Do they need to eat ad drink all night? I know as babies they were up all night but I'm not sure now. Thanks...