One fine day in spring, a great flock of Sand-hill Cranes came from the south. They were flying high and quietly because the weather was bright. If it had been stormy, or if they had been flying by night, as they usually did, they would have stayed nearer the ground, and their leader would have trumpeted loudly to let his followers know which way he was going. They would also have trumpeted, but more softly, to tell him that they were coming after.