I think I'm going to have to invest in electric fencing. I hated the stuff on my grandmother's farm and swore I wouldn't ever have it, but I think it would probably help deter coyotes better than hardware cloth. If I hadn't been home yesterday morning, that coyote would have kept bashing against it until something gave. Or he would have started digging... an eighteen inch skirt wouldn't do much good against a coyote with nothing but time on its hands. (paws?)
Good luck on your hatch!