Editor’s note: This story was updated on Oct. 11 to reflect changes in the project timeline. If you were to visit the University of Maine’s Witter Farm in the quiet hours before sunrise, you would see bleary-eyed students shuffle through their morning chores. At 4:30 a.m., students bring the farm’s dairy cows into a tie-stall read more State’s third robotic milking barn under construction at UMaine’s Witter Farm