Baiting the electric fence also helps. I have little cups that I made out of tin-foil on the corners of my runs. About every 2 to 4 weeks I put hot dogs, cat food, or just table scraps in the tin-foil cups to keep the predators in check. When you first start doing it you will hear all kinds of things getting hit by the electric fence. After awhile the food will have to be removed and thrown away due to nothing bothering it. The surrounding animals learn fast to stay away from the coops/runs. I seldom even have a loose dog running through my property anymore.