Jalen: I noted last year that the birds stayed in the coop when they felt they needed a little more protection from the elements. I think however a flap or making a wood door that drops open with hinges of some sort to hold a bit of their body heat in would be nice. I was a bit surprised about the amount of coolness that little popdoor allows in. You could try it without the door and just watch them and then be prepared to zip on a door if need be. I watched my birds closely during those cold days and would offer them to go out to the run...and if they were just staying in then I would close the door to conserve their comforts. Then after a while I just determined that mark was about zero for my birds that they would just rather stay in and I just left that coop door closed until it climbed above zero--a lot of days around noon or so. That's when my weather.com app came in handy.
