When coyotes attacked, a dog killed 8 of them, saving a flock of sheep

I have a 60 pound Golden Retriever in a rural area that is completely saturated with coyotes. She has "conversations" with them almost nightly over the fence. I'd bet on her to survive a couple of them, but of course a pack of eleven would be the end of her.

The coyotes haven't crossed the fence as far as I know, but it's barely five feet high, so they could hop it with ease if they wanted to. I want to get her a puppy for a companion, and one who could help in a fight. I've been thinking Labrador, but Great Pyrenees now also sounds like a good choice.

It is a Great Pyrenees breed (it is rather large) which is livestock protector but it's mate in the same compound was pregnant at the time which probably drove it to the extreme and take on a pack of 11.

Georgia coyotes are remarkably small