I have recently moved and created a new coop for a few of the hens I kept when I moved. I am in California, the Sacramento region where at night, we are seeing degrees into the 30's. I have noticed that one or two of my hens are sleeping outside in the run, protected, but exposed to the cold. I believe this is because of the hen that is "guarding" the entrance to the coop. Should I be concerned that she will not fare well in the cold? I have a heat lamp inside the coop, which I hope will keep the girls producing, should I not look for eggs from the hen sleeping outside? Does anyone know how to handle the guard hen? I am hoping this works itself out.