We just started with our chickens and after consulting with many of our farmer friends about security, I consolidated all of their advice into our run! Buried the poultry fence at the bottom of the fence, double the poultry fence for 3' from the bottom to keep the eager hands of the raccoons out, installed electric fence along the bottom board to shock the foxes attempting to dig, and raccoons, in addition to running a wire around the bottom of the top board on the fence incase someone gets ambitious and tries to climb the fence. I installed low wattage LED spots with motion sensors on either side of the run and for the attacks from the air, just ran lines across the top with aluminum foil pie plates (heard this works, but not sure) with warning messages directed to the hawks written on them by my 10 year old daughter. I'll be installing the security cams tomorrow!! LOL Chicken prison!
Everything looks good except the chicken wire. That is only good for keeping chickens in, predators can rip it apart. Hopefully with the hot wire will stop anything from getting the chance.