I have a hen with 9 chicks. They are 4-5 weeks old. I moved them outside to their very own chicken coop last Saturday because the weather was going to be really nice here in NC this week. (and I had 12 more hatch out inside with my incubator) That being said....Mama Hen laid an egg yesterday...the first since she hatched these. When should I move her out of the coop back to the other adults? I would do it now if I thought the weather was going to stay nice, but now they are calling for extremely low temps next week and I'm concerned the chicks won't be warm enough without her. The "bedroom" side of the coop is wrapped in heavy plastic, but the kitchen side is open to the air. Let me know what I should do please. Thank you for any help!!!