Okay, I have to explain it. I have two coops right now, one is a rabbit hutch with the top with gating all round and a door, the floor too is gating, which helps because the poops drops to the bottom mostly. Two tarps cover it and I have one corner of it completely blocked off by the tarp on the side while the other is tarp-free for sun and for them to be able to see out and in the front is also the gating where they can see out. We have it blocked off from the bottom because at the bottom we have a pullet that was being attacked because of her age by the older pullets and adults. She is by herself, and she has shelter from rain underneath the hutch because of the tarps at the top and she has a run that is attached to it so she can run about, its enclosed. The second coop is my winter coop and it has two doors, one that is enclosed and goes directly into our enclosed and larger chicken run. The coop has two long perching areas on top, a window, and a nesting area, along with two places off from the perches they can just sit. My problem is that its starting to get cold and I have a mom who adopted three little chicks who are only about 2 wks old. Right now they are all running underneath her. I can't put her and her chicks into the winter coop and they won't be anywhere near ready to go in there with the older ones for a few months, what do I do? The top part like I said has air coming in from all sides except that one corner that the tarp covers. I can eventually move them down to the bottom where they can dig in with lots of wood shavings but it would still be completely open to the elements. And I don't trust the older ones around the babies, because I've seen how they act towards my pullet that I had to separate. I need help because its getting pretty cold at night.