I am hoping to get a few chicks next spring, for eventual eggs. Their house is still only a few different thoughts in my head, but I'm getting lots of ideas here (for which I thank you all). I'm thinking of a raised building, with enough room underneath so they can get out of the Oregon rain, and also to give them more run space. The house itself will be based on an 8x4 sheet of plywood for the floor (for 4-6 standard chickens). Our winters are fairly mild - it can get into the teens, but doesn't often, and snow comes seldom, and never stays long. I'm wondering how concerned I need to be about the hens staying warm in the winter; in this climate do I need to be thinking about insulation? The house will be placed where I could get electricity to it for a heat lamp, if needed. But then I think of all the chickens living in colder climates, back in the days before electricity. Am I worrying for no reason?