I just told my husband what I wanted and he made it from stuff around the house, left overs from main coop, roost, and run. and we used an old plastic bin with a cover. Cut a hole in the side of the bin, with removable top on top, so easy to check on everyone by lifting a hinged and latchable piece of plywood on top of everything and lifting the top of the plastic bin. Hen and chicks still get their privacy.