and it flew as a duck flies. Yet it seemed too large to be either a wood duck or a hooded merganser, the only species of the duck tribe at all likely to be seen in the high uplands in early summer. But the question of its precise identity was of little concern to the peregrine. It mattered little what kind of duck this was. All the ducks were royal provender; and the moment called for action, not speculation.
An instant Cloud King hung almost motionless in the air, like a runner who nerves himself for the start of a hard race. Then his long pointed wings began to move with regular measured strokes—strokes which seemed deliberate and unhurried, yet somehow gave an impression of great power. Faster and faster those calm, monotonously even wing beats drove his hard, muscular body forward; and gradually, imperceptibly, as the speed of his flight increased, the movement of his long pinions became more rapid. But never at this stage of the chase was there any appearance of undue exertion. The big hawk was driving through the air at a rate far exceeding that of the fastest locomotive; yet he seemed not to hurry at all, but sped on his way as easily and lightly as a migrating swallow.
It may be that a definite purpose, to which he reacted instinctively rather than through exercise of any reasoning faculty, governed the falcon's tactics. It was often his custom tc carry choice bits
