The boys did not rejoin us for some little time; they found Knips and the dogs at a pool of water formed by a small mountain stream, which the monkey's instinct had detected; his sudden departure was thus accounted for, and they availed themselves right gladly of his discovery, filling their flasks, and hastily bathing before their return. The ostriches continued to come in our direction, varying their pace as though in sport, springing, trotting, galloping, and chasing each other round and round, so that their approach was by no means rapid. I could now perceive that of the five birds one only was a male, the white plumes of the wings and tail contrasting finely with the deep glossy black of the neck and body. The color of the females being ashen brown, the effect of their white plumes was not so handsome. "I do not believe we shall have a chance with these birds," said I, "except by sending Fritz's eagle in pursuit; and for that we must bide our time, and let them come as near as possible." "In what way, then, are ostriches caught by the natives of the African deserts?" inquired Fritz. "Sometimes by chase on horseback; but their speed is so very great, that even that must be conducted by stratagem. "When these birds are pursued, they will run for hours in a wide circle; the hunter gallops after them, but describes a much smaller circle, and can therefore maintain the pace for a longer time, waiting to make the attack until the bird is fatigued. "Among the Bushmen, the hunter sometimes envelopes himself in the skin of an ostrich, his legs doing duty for those of the bird, and his arm managing the head and neck so as to imitate the movements of the bird when feeding. The enterprising hunter is thus enabled to get among a flock of ostriches, and to shoot them with arrows one after another. "When aware of an enemy they defend themselves desperately, using their powerful legs as weapons, always kicking forward, and inflicting dreadful injuries on dogs, and even on men, if attacked without due precaution. But let us take up our positions, and keep perfectly still, for the ostriches are at hand!" We held the dogs concealed as much as possible; the stately birds suddenly perceiving us, paused, hesitated, and appeared uneasy. Yet as no movement was made, they drew a few steps nearer, with outstretched necks, examining curiously the unwonted spectacle before them. The dogs became impatient, struggled from our grasp, and furiously rushed toward our astonished visitors. In an instant they turned and fled with the speed of the wind; their feet seemed not to touch the ground, their wings aiding the marvelously rapid progress.