Here is a quick coop/tractor that I built for a broody hen and her chicks during my summer vacation. It is light and easy to move on the large casters: When the casters are flipped down under the front it can be moved, and when flipped up the pen is flat to the ground: It isn't waterproof, so I plan to staple a piece of linoleum over the coop part. Mrs Szuess and her 4 chicks are out for the day, but will return to drink water and to roost for the night. Unfortunately, another hen and her 5 chicks are still penned up and would like their freedom to roam. I am going to see/test if the hens are willing to share the tractor/coop.