What do you think of this idea: We're about to get 5 hens. Out back we have a pretty large wood deck that sits about 3' off the ground. I am thinking about walling it up with some wire and making it a "run for when we want to keep them out of the yard." I am thinking of making a smallish moveable coop that will sit right beside the deck, with two entrances, one in back to let them run and eat the bugs under the deck, and another door to let them out into the yard. No grass grows under there, but it's bug city... earwigs, ants, spiders, you name it. Good idea or not?