I have welded wire surrounding our run and the outskirts to prevent diggers, and the top it covered with deer netting to keep the hawks away. I close my coop up at night but yesterday afternoon we left and came home after 9:00 pm. I kept thinking what if something climbed up and chewed through the netting. I know raccoons can climb up trees, but will they climb up my run? Is there really a risk or am I over doing it? Should I worry? What does everyone else do?