What I have done in the top of my pens is stretch wire 2 - 3" apart across the top, then electric wire along the top perimeter and down low. This permits leaves/snow to fall through, but prevents the hawks. It of course will not stop a coon/opossum, etc. who drops from above from one of the trees, but my birds are locked up at night anyways.
I have eight dogs, 6 being corgis, 1 westie (great vermin dog) and brittany spaniel. Between all of them, not many coyotes or fox will venture near our yard.
In the back, however where I keep my turkeys with the horses, donkeys and goats, I do worry more about the coyotes and the cougar in our area (yes cougar are back in Ohio). This is why I do lock my turkeys up at night and the turkey tractor had electric around the bottom, which I just attach to the horse fence with a stretchy gate connector.
I've only had to kill one predator, an opossum, that got into my juvenile coop at dusk. Bad decision on it's part. My husband was quite shocked to see me grab the flat shovel and with one chop, take most of it's head off. Hey, after all these years shoveling horse manure (over 43 years now, with horses), I know how to wield a shovel!