I recently just lost a chicken to a fox in my fenced in run. I have since raised my fencing to 6' and placed the bottom of the fencing in a 3' asphalt path all around the perimeter to keep any digging predators out. I want to put netting over top of the run (fairly large run) but don't know what is the best kind to keep any climbing foxes and hawks out. Anyone have any ideas? Thanks!