I'm new to having chickens, & have had my 6 hens ~3 months. The coop I built is large enough for sleeping & laying eggs, but if they had to stay inside on a rainy day, they couldn't move around that much. Their run is not covered, & they free-range in my back yard most of the day. What do I need to do, & how much space will be needed, in preparation for rainy weather? There is a photo of my coop & backyard on my home page. Thank you all so much for your interest & help.