So our coop is done and we are in the final stages of completing the attached run. Half of it is going to be covered with corrugated metal roofing, but I am wondering about the top of the other half. DH plans to cover it with 2X4 welded wire, but is that really necessary?? It's on a hill, 7 feet tall on one side and 9 feet tall on the other. Can predators like foxes and raccoons climb that high to get in?