I've killed a few birds that were stuck in the middle of a field forever, then had calves (or even young deer), start playing chase with the turkeys. More often than not, when the turkeys leave the field after they get tired of being run around, they'll exit where they have heard me calling. But I've definitely had more hunts ruined by livestock than they have been successful. Worst was last year when I had to use the butt of my gun to knock one of our Angus bulls in the head to keep him off me while I had 2 toms 40 yds away. That bull could not stand turkey yelping.