So I have a Blue Cochin who went broody and hatched a dozen babies. The babies are closing in on 2 weeks old. They are all outside in a nursery pen and she sleeps with them under her body inside of a corrugated box with a blanket inside of the nursery. The nursery pen is covered with thick plastic on the side that gets wind. My question: By the time they are old enough not to be able to all fit under her - will they be feathered out enough to keep warm by snuggling all together? This is our first hatch and when we raised our first day old chicks this past spring - they were raised indoors with an eco brooder heat thingy. We put our chickens outside at 5 weeks old in the spring. Thanks!