We have coons, possums, mink, hawk, and coyotes. Our existing structure is a custom made coop, but needs proofing bad. So what do I need to do? I was thinking putting plywood up on the walls so they are solid and hardware cloth on the perimeter (floor and up about 4 inches on the wall). Also, how do you make a pop door predator-proof? If you have pictures of ideas, that is great, but if not then that's great too 
