Just about ready for our chickens and was planning on dividing the chicken run so that I can let one side "rest" while they are in the other. The entire enclosure would be 625 feet so each pen would be 300 plus feet. Anyway, what kind of ground cover should I plant or is it a waste of time as they would pick it to death anyway. Otherwise our choice is straw, mulch and dirt. Is that what the floor is usually in a chicken run? I also plan to free range some of the time. Also, read about using foam panels for insulation on the interior of the chicken house. Can you use these without the chickens pecking at it, or do you have to cover it with plywood for "true" home like insulation? Did not want the extra expense of covering all the walls with plywood. The house is pretty big. thanks for all your help.