“But, I have to give credit to the Chihuahua.”
I have one that is 1/2 Chihuahua and 1/2 Border Terrier...the crazy dog in “There’s Something about Mary”. The movie.
Talk about fierce! He has charged a 150lb Rottweiler...and cowed him. He made the Rott beta.
The Rott is next door and then the dogs are together the Rott dutifully follows my Sam dog.
Because Sam is alpha. At 16lbs of muscle and balls.
That’s great.
We used to have a Bassett Hound that terrified and dominated the two pit bulls that lived next door to us.
It was hilarious. They would run on to our property whenever they were loose, but if Elmer was outside he’d attack them and they’d both soon be rolled on their backs whimpering while he held their throats in his mouth one at a time and growled menacingly at them.
The funny thing is, Elmer was one of the most laid back dogs I have ever known, and he got along swimmingly with every other dog he ever met - except those two.
IF you want to keep a dog that can best coyotes—get a Great Pyranese . They look like a huge lumbering fool, but they can turn on the speed & take down a coyote. They are used extensively by sheep ranchers all over the world to keep predators at bay. Very good protection for the family, also.