I'm putting this on the Texas page because only Texans understand Texas weather and how varied it can be. I live in deep South Texas, right off the Mexico boarder. Right now it's raining, kind of, and the temperature is going to hang around 49-50. In the north that's summer, down here that's cold and I have the heaters on. I have 5 Buff Orpingtons and 3 Ameraucanas, one of which I believe to be a rooster all others are pullets, they are about 4 weeks old and yesterday I put them in a coop, pictured below, when it was 70 degrees out they of course loved it but it will be 49-55 until Tuesday. Do I need more heat for them? I have them pinned in the enclosed part with grass and pine wood shavings, along with their food of course.