Beware the pairs too. A large dog can usually stand one off. But where i walk they often work in twos. Lure the dog into the woods where a second coyote is waiting. Then tag team on the take-down.
This happened to one of mine, a lab-pit bull mix. The first coyote led him off, then halted and turned around as the second one came out from behind a bush.
Fortunately for him, he was an extraordinary animal who had developed his own fighting style somehow. Having seen it before when he was attacked by larger, stray dogs, I called it “dog jitsu”. Those fights were over in a second or two, oddly enough with minimum harm to either dog—but the other dog held in a pin to stop it from fighting further.
Instead of engaging and clenching with the lead coyote, he flipped it through the air several feet and it landed on its back, hard, knocking the wind out of it. My dog took the opportunity to scram. A wise move. He still ended up with a good sized gash on one leg.