I've only had chickens for about five months. I rescue layer hens after they've stopped laying, and I currently have five. They have a 5x4 raised coop in an uncovered run and I also let them out to free range. I live on the Oregon coast and we get a significant amount of rain in the winter. They are able to stay dry in the coop, under the coop, and under a bush in the run. So the run is pretty muddy and damp right now. Should I lay down some straw in the uncovered run or not? And after reading on here, don't think I need to insulate my coop because we rarely get below freezing here at night.