Page:The Zoologist, 4th series, vol 5 (1901).djvu/194

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170
THE ZOOLOGIST

companion—a male in splendid plumage.[1] When the two birds meet they remain for some moments at rest on the water fronting each other, their heads and necks close together, whilst each tâtes the other's bill with his own. They then swim down to a part of the water nearer to me, followed by the odd male bird, who when the others pause remains near about them, having a somewhat "out of it" appearance. The accepted male, which I believe to be the one whose nest has been destroyed, now swims towards him with neck drawn in, head lowered, and bill pointing straight forward just above the water-line. All at once, and when still a little way off, he dives; a moment or two afterwards there is a sudden start and retreat on the part of the rival bird, the other one reappearing on the surface a little behind him. In a minute or two this happens again, and this time it is more pronounced, the start of the attacked bird being much more sudden, his retreat more alarmed and rapid, whilst his enemy emerges just where he has been, having evidently attacked him under the water. Once more, about half an hour afterwards, this mode of warfare is exhibited, if possible, still more clearly. During the interval the discomfited bachelor bird has remained alone near the bank where the destroyed nest has been, and the married couple now swim directly down upon him. The male is in advance, and as he approaches he again exhibits the angry mien, holding the head low, with the neck drawn in and the beak pointed straightly forward, looking like a stiletto. But he swerves from his course, and seems now to be swimming towards the female, who has glided out to one side, and rides at ease—a spectator—when he dives. This, however, must have been a ruse, for a few seconds afterwards the unhappy persecuted male not only starts, but rises in great confusion out of the water, and flies right away to a distant part of the lake. From the moment of his flight I watch for the reappearance of the other, and, sure enough, he comes up shortly in the place, or approximately the place, that has just been left vacant. He swims about for a little with the head still lowered, and in a proud sort of way; then, raising it, goes to the female, and there is now between the two the same scene of gratulation as before, but much more marked. They again front each other with their heads and necks almost

  1. Yet not more so than the other male. All three, indeed, looked superb.