Just thought I'd post a picture of one of our hoop houses, with a link to our page about them. We use them as grow-out pens, and here in the (relatively) mild KY winters we can even keep birds over-winter in them (depending on breed) by putting plastic on the front. They are great because two people can just pick them up and move them to a new patch of grass every couple of days. Only drawback is if it gets really windy, they can and do blow away, so we stake them down. They can be made cheaply, this one was made from scrap wood, two cattle panels, two tarps, zip ties, and some hardware cloth: And see our website here for more pics about them and our other tractors: http://www.pathfindersfarm.com/hoophouse.html The fencing around it is electric poultry netting, great for keeping birds in and predators out.