Next time you pour a nice cold glass of milk, you could have a robot to thank. That's because automated milking machines are showing up at more and more dairy farms in Vermont and New Hampshire. The technology is cutting down on labor costs, increasing yield and teaching farmers more about the health and productivity of their herds. Just ask Nate Tullar, of Orford, New Hampshire. Cows have been giving milk at his family’s farm, Tullando, since 1956. That’s when his grandparents started the dairy business, and they have often been open to innovation over the years. There are now...