I am in need of some ideas of things to add to our chicken run. We have a 10x10 fenced-in area for our 4 girls. It has a cover and an old tree stump but that's it. Usually they are free-range during the day, but I am preparing for the winter months where we won't be letting them out as much. I know I want to add a dust bath and some type of perch. We plan to add leaves to the floor for scratching. Any tips or ideas of what to add? Thanks in advance.