Read my post #4878 in this thread and that will explain why I offer the following suggestions. Cover that cheap 1-inch poultry wire under the coop with some 1/2 inch hardwire. Poultry wire is not interlinked and comes apart from itself with the predator's slightest pressure. Critters will seek the easiest entrance and that poultry wire is it. Nearly lost my flock to cheap poultry wire so never again!
To keep out digging critters I suggest paver stones or property boulders around the base of your pen's fence and under the gate if your fence wire is not buried in the ground to keep out digging wildlife. You've got a lot of trees around you where the climbing and aerial predators hide out. Rural areas have aerial predators, weasels, wild rabbits, snakes, foxes, coyotes, wild pigs, skunks, bobcats, raccoons, oppossums, stray dogs and cats, rodents, besides the usual deer and occasional bears or mountain lions. My daughter's city property butts up against a wildlife preserve and bobcats and coyotes are regular visitors with some years having a mountain lion or bear trot through. You never knew you had such wildlife surrounding you until the chickens bring them out of hiding.
Love the recycled materials coop. Just secure the fencing sturdier/more secure from predators and I'll breathe easier for your chickens' safety
