Ahead of him the shallow waters of the marsh lagoons were packed and jammed with life. Under him they were empty, for no duck in all those thousands was bold enough to await the tyrant's arrival. Once they were fairly launched in flight they were comparatively safe, for they had learned that this gray eagle, like most others of his kind, seldom undertook a straight-away chase. They had learned also, however, that to delay their start one instant too long might be fatal. Hence that thunder of wings, which was the tribute of the tyrant's subjects to their lord, rolled down the flats well in advance of the eagle as he swept on just under the smooth white sheet of mist; and long before they saw him the hundreds of mallards, pintails and coots, dabbling and feeding in a certain long, marsh-encircled lagoon bordering the river, had warning of his approach.
To all those hundreds that warning brought terror which in nearly all of them was instantly manifest. The squadrons of big, green-headed mallards ceased their busy dabbling for food and, with low, excited quacks and apprehensive upward glances, bunched closer together in preparation for flight. The high-riding, swanlike pintails settled lower in the water and bent their long necks over their backs, searching the air for the enemy. A black fleet of coots, which a moment before had rested
