We have five, four-to-five day old chicks in our coop right now. We just got them from MyPetChicken on Tuesday, and they are under a broody hen. My problem is that, since we are in New England, the temperature at night is starting to get close to freezing. Can Momma Hen keep her chicks warm in these temperatures, or should we move her into the house or main part of the barn? She and the chicks are in a dog kennel, in the coop, with lots of hay. The coop is a few degrees warmer than outside, since I chick-proofed it, and Momma Hen is a standard size hen, so she has no difficulty fitting all the chicks under her. Thanks!