Our 2 Pit Bull dogs keep the coyotes scared off around here. I'd say some good big dogs would keep them at bay and you wouldn't have it to worry about too much. We heard them all the time in the woods behind our house, but since getting the dogs, have yet to see one. I know they're there and growing in number because the deer and rabbit population is down even though there hasn't been much hunting in the vicinity in the last 3 years other than myself. Neighbors on both sides have dogs too that keeps them drove back into the woods where they belong. SO I vote dogs.