The whole cage is covered with a tarp and sits on top of a wooden frame. There is a board placed on the back to keep the wind out. There is also a long board leaning against the side to keep the wind out. The ducks sleep underneath the chicken coop at night so the boards give them some protection as well.
The bottom of the chicken coop is made of wire screen. This works out well since the droppings generally fall through to the bottom. The whole coop is easily moved so we can clean out underneath or change the position of the coop as we need to. This coop has been moved many times!