When I lived in Kali, Glendale, we had the coyote problem. They liked to dine on housecat, and nay manner of dog they could kill and get away with. One of my classmates lost a pair of Dobies to a coyote. Don't let the small size fool ya. I have SEEN a coyote wear down and kill a Great Dane. Craziest freakin' thing, coyote got one leg then a quick one on the throat and the Dane was down. Classmate got a pound dog, decent sized one, shepard mix. Coyotes came down to dine, and left one of their own i the yard with a pound dog cheerfully ripping it to pieces.you are right they do run in packs. but the wildlife experts always laugh at this and say they don't. they need to put down their manuals and spend more time in the woods. i would say most dogs can whip a single coyote though because they just aren't that strong and don't have the drive to equal a dogs protective instinct. but they are clever and quick!
Funny some of the experts say coyotes don't hang in packs. Others have documented the packs, even showed one pack taking a black bear cub from its mother. They are not organized packs like wolves, but they will hang togetehr for bigger game.
Coyotes know enough to avoid my group. Wolcves are the natural enemies of coyotes, and it takes quite few coyotes to bring down one wolf.