Another thing to worry about with Coyotes vs. dogs is that they don't fight the same as a domestic dog would. When we had coonhounds, I went hiking with a couple of our male dogs. One ran off after a coyote, and I ran up just in time to see him jump on it. The rat ******* flipped upside down immediately and took his back feet and teeth and just shredded the underside of my hound. I have seen one do that twice now on two different occasions. Had the rest of my coonhounds not shown up, that one dog would of been dead. They don't expect one to flip over like that. It's also not the first time I've heard stories of coyotes fighting "dirty." Talking to a lot of people who hunt their hounds up here paints a pretty clear picture in my head as to why to keep my dogs away from them.
a. Actually domestic dogs will flip over and attack the underside. I watched a Jack Russell do that to a German Shepherd.
b. You're using dog bred hardwired to hunt not a dog bred hardwired for the sole purpose of guarding and defending.
These herd/flock guard dog breeds don't go chasing a predator for miles. They protect an area and charges. They don't abandon them to chase a wolf. The wolf has the choice of running far away or dying because it doesn't.
While they are incredible dogs I would never recommend them as a pet for everyone. Especially a Kuvasz. If you're the right kind of person for them then you'll never have a better canine, but if not you could end up with a problem. You can't train out of them what they've been bred for. They will have something to protect and will see things as threats (unappoved dogs, unapproved cats, unapproved people, etc.....). In a rural setting with basically just you're family, friends and stock as the only things that are likely to ever be around they're great with little extra effort on your part. If you live in town or suburbs with a lot of people and their pets, etc.... you'll need to a lot of socializing at a young age (think in terms of weeks not months....unless you're thinking very few months) so that more things will be approved of as acceptable for the dog and you will have to have fenced yard or they will stake out a pretty large area as "theirs" (your yard, all your neighbors yards, your street, your block, the next block, etc.....), do patrols and will defend everything in it that they view as their charges against anything they see as not their charges.