Hi 4 of my girls and the Rooster have started roosting under the Hen House. The house is on legs and has a ladder up to it, 1 of the girls goes to bed in the house but the rest settle down perched on the rung of the Hen House, which means I can't shut the hen house. I know all the girls can get up the ladder as they lay their eggs everyday in the nesting boxes. My concern is will it be warm enough for them during the winter and safe? I can shut them into the coop, is this safe enough? I have never lost a chicken to predators yet and hopefully this will continue. I have had a problem with rats and at this moment have a professional rat man in to eradicate them! Discovered lots of holes around the coop. Plus lots of dead rats and mice now, due to the poison, which is a nightmare trying to find them before the chickens and Rooster! What should I do? Any advice appreciated.