blossoms of which, though presenting little beauty in form or hue, are eminently attractive to the Long-tailed Humming Bird. These bushes are at no part of the year out of blossom, their scarlet berries appearing at all seasons on the same stalk as the flowers; and here, at any time, one may with tolerable certainty calculate on finding these very lovely birds; but it is in March, April, and May that they abound. I suppose that I have sometimes seen not fewer than a hundred come successively to rifle the blossoms within the space of as many yards in one forenoon. They are, however, in no respects gregarious; though three or four may be seen at one moment hovering round the blossoms of the same shrub, there is no association--each is governed by its individual preference, and each attends to its own affairs. It is worthy of remark that males compose by far the greater portion of the individuals observed at this elevation, while very few females are seen there; whereas in the lowlands this sex outnumbers the other. In March a considerable number are seen to be clad in the livery of the adult male, but without the long tail-feathers, whilst others possess them in various stages of development. These are, I have no doubt, males of the preceding season. It is also common to find one of those lengthened feathers much shorter than the other; and in their aërial encounters with each other a tail-feather is sometimes displaced. The loud sound made by the strong vibration of the wings of the male is more shrill than that produced by those of the female, and indicates the proximity of the bird before the eye has detected it. The male utters an almost incessant chirp, both whilst resting on a twig or feeding from the flowers. They do not invariably probe the blossoms on the wing, but frequently when alighted and sitting with closed pinions; and they often partially sustain themselves whilst feeding by clinging with the feet to a leaf, with the wings expanded and vibrating. When perched, they usually sit in a nearly upright posture, with the head thrown backwards, the beak pointing at a small angle above the horizon, the feet almost hidden by the body being brought into contact with the perch, the tail thrust forward under the belly, and the long feathers crossing each other near their middle."