Master 2138, Tape 1 MS Young Woodchuck (Marmota monax) running through grass to his burrow. The woodchuck enters the den near his mother. Other young woodchucks pop their heads up and look out onto the prairie. One of the young woodchucks leaves the den and eats grass. The other woodchucks disappear back into the den. The woodchuck stops eating and disappears into the den.