THE HUMMING BIRDS (Stridor), a family of most beautiful and fairy-like beings, inhabiting the Western Hemisphere, comprise some of the smallest members of the feathered creation. In these birds the beak is generally long, slender, straight, or curved, usually round, and sharp at the tip; the nostrils are basal, and covered with a large scale; the wings and tail are very variously formed, the latter being always composed of ten feathers; the very short tarsi are most delicately constructed; the long slender toes are covered with small scales, and either partially united or completely free from each other; the sharp-pointed claws frequently exceed the toes in length. The glorious plumage possessed by the members of this most attractive family has been enthusiastically described by many writers, but never more eloquently than by Buffon. "Of all animated beings," says that naturalist, "the Humming Bird is the most elegant in form and brilliant in colour. The stones and metals polished by art are not comparable to this gem of nature; she has placed it in the order of birds, but amongst the tiniest of the race—maxime miranda in minimis—she has loaded it with all the gifts of which she has only imparted a share to other birds—agility, nimbleness, grace, and rich attire, all belong to this little favourite. The emerald, the ruby, and the topaz glitter in her garb, which is never soiled with the dirt of earth, for, leading an aërial life, it rarely touches the turf even for an instant. Always in the air, flying from flower to flower, it shares their freshness and their splendour, imbibes their nectar, and only inhabits those climes in which they are unceasingly renewed. The Humming Bird seems to follow the sun, to advance, to retire with him, and to fly on the wings of the wind in pursuit of an eternal spring."
"Along the whole line of the Andes, which form as it were the backbone of America," writes Gould, in the valuable introduction to his magnificent work on the "Trochilidæ," "at remarkably short intervals occur species of this family of birds of the greatest possible beauty, which are not only specifically but generically distinct from each other. Abundant as the species may be towards the northern and southern portions of the great chain of mountains, they vastly increase in number as we approach the equator. The equatorial regions teem with species and even genera that are not found elsewhere. Between the snow-line of the summit of the towering volcanoes and their bases many zones of temperature occur, each of which has it own especial animal and vegetable life. The Alpine region has its flora, accompanied by insects especially adapted to such situations; and attendant on these are peculiar forms of Humming Birds, which never descend to the hot valleys, and scarcely even to the cooler and more temperate paramos. Many of the higher zones of extinct and existing volcanoes have their own fauna and flora, even in the interior walls of ancient craters, wherever vegetation has gained a footing. Some species of Humming Birds have there, and there only, as yet been discovered. It is the exploration of such situations that has led to the acquisition of so many additional species of this family of birds, which now reach to more than 400. From Santa Fé de Bogota alone many thousands of skins are annually sent to London and Paris. The Indians readily learn the art of preserving them, and as a certain amount of emolument attends the collecting of these objects they often traverse great distances for the purpose of procuring them. Districts stretching more than 100 miles away from Bogota are strictly searched, and hence it is that from these places alone we receive no less than seventy species belonging to this family. In like manner the residents of many parts of Brazil employ their slaves in preparing their skins for the European markets, and many thousands are annually sent from Rio de Janeiro, Bahia, and Pernambuco; the inmates of convents are also supplied with many of the more richly-coloured species for the manufacture of feather flowers. How numerous then must these birds be in their native wilds; and how wonderfully must they keep in check the peculiar kind of insect life upon which they feed!"
In disposition the Humming Birds exhibit a fearlessness and courage quite out of proportion to the delicacy of their structure, and we might cite many instances of the fierce encounters in which they sometimes engage; we must, however, confine ourselves to an extract from Gosse's interesting little book on the birds of Jamaica.
"The pugnacity of the Humming Bird has been often spoken of; two of the same species can scarcely suck flowers from the same bush without a rencontre. I once witnessed a combat between two which was prosecuted with much pertinacity, and protracted to an unusual length. It was in the month of April at Phœnix Park, near Savannah-la-Mer. In the garden were two trees of the kind called Malay apple, one of which was but a yard or two from my window. The genial influence of the spring rains had covered them with a profusion of beautiful blossoms, each consisting of a multitude of crimson stamens with very minute petals, like bunches of crimson tassels, but the last buds were only beginning to open. A Humming Bird had every day and all day long been paying his devoirs to these charming blossoms. On the morning to which I allude another appeared, and the manœuvres of these two tiny creatures became very interesting. They chased each other through the labyrinths of twigs and flowers till, an opportunity occurring, one would dart with seeming fury upon the other, and then, with a loud rustling of their wings, they would twirl together round and round until they nearly came to the earth. It was some time before I could see with any distinctness what took place in these tussles; their twistings were so rapid as to baffle all attempts at discrimination. At length an encounter took place pretty close to me, and I perceived that the beak of the one grasped the beak of the other, and, thus fastened, both whirled round in their perpendicular descent, the point of contact being the centre of the gyrations, till, when another second would have brought them to the ground, they separated, and the one chased the other for about a hundred yards and then returned in triumph to the tree, where, perched on a lofty twig, he chirped monotonously and pertinaciously for a time, I could not help thinking, in defiance. In a few minutes the banished one returned, and began chirping no less provokingly, which soon brought on another chase and another tussle. I am persuaded that these were both hostile encounters, for the one seemed evidently afraid of the other, fleeing when he pursued, though his indomitable spirit would prompt the chirp of defiance, and when resting after a battle I noticed that the vanquished one held his beak open as if panting. Sometimes they would suspend hostilities to suck a few blossoms, but mutual proximity was sure to bring them on again with the same result. In their tortuous and rapid evolutions the light from their ruby necks would flash in the sun with gem-like radiance, and as they now and then hovered motionless, the broadly-expanded tail—the outer feathers of which were crimson-purple, but in the sun's rays transmitted orange-coloured light—added much to their beauty. A little Banana Quit (Certhiola flaveola), that was peeping among the blossoms in his own quiet way, seemed now and then to look with surprise on the combatants; but when the one had driven the other to a longer distance than usual the victor set upon the unoffending Quit, who soon yielded the point, and retired humbly enough to a neighbouring tree. The war—for it was a thorough campaign, a regular succession of battles—lasted fully an hour, and then I was called away from my post of observation. Both of the Humming Birds appeared to be males."
According to Gosse, the Vervain Humming Bird is the only species endowed with a song; this bird warbles very weakly but sweetly for ten minutes at a time during the spring months. The other members of this family at most indulge in a sharp shrill chirp, as they flit from one flower to another.
The GIANT GNOMES (Eustephanus), the largest members of the family, are not conspicuous for the gaiety of their plumage. The structure of their long beak varies considerably; the foot is of moderate size; the wings either long and slender or broad and short; the tail, which is of medium length, is forked at its extremity.
THE GIANT HUMMING BIRD.
The GIANT HUMMING BIRD (Patagona gigas) is pale brown shaded with green on the upper portions of the body; the wings are greyish yellow; the head, upper breast, and back are marked with dark undulating lines; the wings and tail-feathers are dark brown, the latter enlivened by a green gloss. This species is two inches long.
The Giant Humming Bird inhabits the southern parts of Western America, appearing also in the extreme south. During the course of its migrations it has been met with at an altitude of from 12,000 to 14,000 feet above the level of the sea.