Predators would have to get past a six-foot chain link fence, the big guard dogs, a six-foot cedar board fence with the smooth side out, and the small guard dogs. A rattlesnake might make it in as my dogs are trained to avoid them.
Thanks for all the suggestions on predator-proofing runs. We went with chain link fencing attached to welded metal pipe frames. The panels bolt together at the corners, the floor is pine shavings over a 6' by 18' concrete pad, the roof is corregated metal, and their coop sits inside. My question...