OK, here's a tip that works. (I know, I've done it.) Drink lots of liquids, then go out and pee all along your fence or property line. This is how canines define territory.
The coyote, wolf, whatever, will come up, smell your "mark" and then proceed to "mark" the same spot. This delineates the boundary of your and the animal's territory, and generally, it is respected. You do need to go out and refresh occasionally, though.
Laugh if you like, but it works.