We have small predator problems (fox, opossum, raccoon) but we also have a bad feral/roaming dog problem and coyotes. One of my nearby neighbors has fighting pits, one of which is nursing pups and roaming the neighborhood all hours of the day and night. (We've called the sheriff on them several times for other reasons too.) I'd really like to have free range chickens, but my neighbor has lost 90% of his flock and so have my parents (they live 1/4 mile behind me). I have 8 acres with a small pond behind the house. The coop will be a lean-to on the shop with the run attached. If I had my way I'd put a 3-strand around the two acres immediately behind the house and get a mini donkey. Dad uses a solar powered 3-strand around his pea patch to keep the deer out, and I'm considering a similar setup for the coop and run we are building. I've already priced a solar power supply that will run a 2 acre enclosure and can get all the other fencing stuff locally (wire, posts, insulators). The big question is: How many strands? If I'm keeping out small predators, obviously one around the bottom of the coop, and a wire close to the ground around the run. I'm thinking another wire a foot up to keep the &^%$#@! dogs out, but I guess I need an actual fence to keep the chickens IN. Thoughts?