My chick-n-villa (mine has an added nesting box) is inside an 18x18 8-foot tall enclosure and my 5 hens are never locked inside it (the villa, that is, they are locked inside the 18x18 enclosure.. They won't sleep in it though, right now it is 40 degrees and raining, and they are all sleeping on top of it in the rain. They will go inside to lay their eggs and get to their feeder, but they don't sleep in there. I got them in April and they free-ranged until a couple of months ago, when I had to build my enclosure higher to keep them in due to complaining neighbors. Also, when they free ranged, they never slept in it, they always roosted in the trees. They did sleep in it when they were little for a couple of months before they figured out how to get up into the trees. I have tried locking them in for a week, etc, still they won't sleep in it. I know it's because they prefer a higher spot, but wouldn't they rather keep warm and dry? Sometimes at night I will chase them off the top and make them go inside, but if I don't close the coop door they won't stay in. I've also tried putting a light in there for a few hours in the evening (for egg purposes, but thought it might get them to go inside at night too), and it didn't work, nor did it increase egg production, so I stopped using the light. I'm worried that when the weather turns really cold here in January that they are going to freeze. Any suggestions?