Getting ready to start building our coop and run. Reading all of the horror stories with raccoons, opossums, hawks and owls. We have all of them in our suburban yard! I know the hawks and owls can only be dealt with by a covered run and limited, if any, free range time. We have decided to bury the wire for the run so the raccoons and opossum can't dig under. How deep do we need to go? Is 3-6 inches good? I can't imagine trying to dig out an 8x16 area any deeper. Now that I think about it...digging out 8x16 is pretty yucky too!!!