I just bought a very big steamer trunk on eBay for 3Euro 50 cents. I think maybe it could make a good house for 4 chickens? The first photo is my box, the 2nd picture is a cat litter box someone has made. But I could adapt the idea. Put the box on a short platform, cut a door on one end, and a window on the other end. Put some sticks in it for the birds to roost on. I think it could work.