The ambush method works well with coyotes and pigs. Coyote tracks are pretty distinct in dust. They hold their shape better than hoof tracks. If fresh they can easily be distinguished from dogs.
The best way that I can describe the difference is that dog tracks have a happier rounder shape and coyote is a little longer than wide and appears more menacing. Dogs and coyotes show nails in their tracks, cats do not.
Navin R. Johnson: "He hates these cans!!!! Stay away from the cans!!!!"