When I lived in New Mexico we had a donkey.
We had lots of trouble from packs of wild dogs getting at our chickens and goats. I once saw the donkey grab up a large Pitt Bull and slam it against the barn. The thing limped off squealing and bleeding. I doubt it lived very long.
It was rather gruesome.
The donkey was very gentle towards me....but I was wary of it at all times.
Here in SE Texas a lot of people put them in with their cows to keep the coyotes away from calves.
A pack of coyotes doesn’t stand a chance against a couple of donkeys.
They will bite the crap out of them then sling them. If they don’t run then they also get stomped.
A mule will also do the same thing, only they are bigger and stronger.
Some Indians, seeing a horse being ridden for the first time, and having never ridden an animal in their lives, on first sight assumed the horse and rider was a single very weird animal.
I have heard that some people will keep a llama around to help guard their sheep, too.