I'm about to build my first coop. I'm up in Ontario where winters can be brutal. I thought about having the roost of the coop cantilevered out so that in the summer, the poop would fall right through the wire and onto the ground outside. (That area would not be part of the run). And then in the winter I'd have a panel that would pop in to close off the wire to keep warmth in. And on top of that could be a catching tray of sorts. What are your thoughts on the poop wire below the roost being open to the ground below to make an exterior collection ?