One which was shot and wounded in the wing I introduced to the doves, in a large packing-case, the front of which was removed, and replaced by gauze. Immediately on being put in, it began vigorously charging at the gauze, as if it had no idea of any impediment there, running backward a little way, and then dashing at it; and this without an instant’s intermission, now and then leaping up, and uttering its wild cry. For a few minutes its impetuous motions seemed to stupify all the doves, who gazed in astonishment; but presently a young Bald-pate, who occupied one of the front corners, a very cross and surly fellow, began to peck and beat the little Plover, driving him about the cage without mercy. I had been struck at the first entry of the bird with its remarkable height, owing to the length of the tarsi, and the upright, bold attitude in which it stood. At length to escape the persecutions of the Bald-pate, it suddenly squatted down in one of the back corners, bringing the tarsi flat on the ground, and the tibiæ on them, so that I was now struck with its flatness and closeness to the ground; and I saw how it is that we so often hear their cry very near, when we can see no trace of them, and often suddenly lose sight of them when watching them running. I feel assured that this squatting is the bird’s natural resource for concealment; for on being alarmed suddenly, its first impulse is to bend partially the heel, bringing the body nearer the ground; if the danger appear to increase, it brings the tarsi flat, the tibiæ still being inclined; the body seems now in contact with the ground; but a greater terror brings it still lower, so that it really appears as if half sunk in the earth; and now no advance of the danger affects it, if there be no opening to run; it lies quite passive; its resource is exhausted.