I've been trying to come up with another method of securing the area where I keep the chickens, the top of their pen. They've got a nice coop that sits against the house on one side and then that and the surrounding area are enclosed with privacy fencing and the front entrance with chicken wire and a framed chicken wire door. I've always used bird netting across the top, starting at the house side and running across, stapled on to the fencing. It's worked pretty good over the years but have had to replace and/or repair holes so critters/predators can't get in and the chickens can't fly out. It's fairly flimsy and I've never been happy with it. Today we had a horrible rain/snow storm, it rained nonstop for 2 days straight and then a snow blizzard all day today. The netting collapsed under the weight and came undone, some of it froze to the ground. Tomorrow is supposed to warm up and here in Oklahoma, all the snow will probably melt off. I need ideas for something I can use as a cover for the pen where the chickens run around. I have a tractor for the yard so they get out often but while inside the pen, need something for cover. Any ideas?