Hi! If we use a typical metal 10' x 10' (6' high with fencing top) dog run bumped up to the coop as a chicken run, are there any other precautions you would recommend to protect from predators? This would keep the farm cats, coyotes and hawks out (I think). We plan to move the coop (tractor) periodically/infrequently with this dog run too (if it's not too heavy). I don't think we would need to bury a barrier for those digging critters, would we? Chickens would be locked up at night. Thanks for any input!