We are making a coop out of my daughter's old playhouse. We live in North central Texas, so winters are pretty mild. I have read the ventilation page, and the book on open coops, but I am having a hard time believing they won't be too cold! What do you think? There is also a little round window up high in the back wall. I think I am going to add nesting boxes to the bottom of the back wall, and put the roosts right in front. We repurposed the side of an old Jenny Lind crib to use as roosts- do you think they are too skinny? Most of the other roosts that I am seeing are boards, thick branches or rods. I would appreciate any ideas or comments! Chickens in Paradise!