I have two enclosures. The smaller sheltered one is about 10' x10'. It is under a roof. It also attaches to there coop so in the morning they can come out of the coop into that area before I let them out into a bigger 20' 30' enclosure. Does anyone have any suggestions as to what I could put on the ground to keep the bare dirt from showing? Not sure what is best, straw, wood chips etc.