Hello everyone! I'm new to raising chickens Got my first 2 today and have a question... we keep our hens in their coop at night but during the day they roam around free in a pretty big enclosure (40ft X 40ft) that has dirt and few weeds (no grass). How do we keep this area clean? Our 3 children love to play with the chickens and walk all around the area. Any advice would be greatly appreciated!!