Out west, my experience has been that I don't usually get a vocal response when I howl, except from rancher's dogs maybe almost a mile in each direction. That doesn't mean there's no coyotes, they still come in.
In fact, it seems when I do get a vocal response from coyotes, they don't usually come in. That's just my experience. Also, I don't get one coyote to verbally respond back to my howls, it's either several dogs or none of them.
