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.
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.