We have dealt with possums , racoons, coyote, stray and wild dogs all were directly trying to get in. Plus lots of chicken hawks. We come close to losing a hen on 1/2/17 due to one, my RIR mix hen saved her by flogging the hawk. The hen survived her injuries. We've had a few curious neighborhood cats come around. And now since last winter there's been a bobcat and a panther (multiple neighbors have seen/heard it too), plus a good size bear in the area (it was cutting across field next door). So far the latter 3 haven't attempted anything. And I need to add my own dog because she wasnt raised with chickens and she has tried to go after them while on a lead, so if chickens are out, she's locked up. On the flip side we also have lots of non-predators. There's deer, squirrels, rabbits, song birds, crows, ravens and more. The crows and ravens seem to protect our chickens from the hawks, I've seen them chase quite a few from area. Also my cats are curious about them but afraid of our large ones but were raised with the Bantams. Look at my avatar photo of my one cat and a Showgirl hen.