I haven't seen any coons, but have seen a possum and we've had skunks. How much effort do possums and skunks and cats make to get at chickens? I have cats but so far they don't seemed to take any notice of the chickens. Though I haven't got them set up for outside yet, but will soon. I have a gate to the big door and I haven't cut the pop hole yet. I had the coop door open today, they haven't figured out yet and they were in a room off our garage and the cats go in and out of the garage. They could get noisy I would've thought the cats could hear them, but the cats didn't seem interested in the door.