Birds and Nature, Vol 10 No. 2 [September 1901]. Various

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      TO A HUMMINGBIRD

      THE ANNA’S HUMMINGBIRD

      (Calypte anna.)

      Buffon, writing of the Hummingbird, and his words do not refer to any single species, but to them as a group, says that “the emerald, the ruby and the topaz glitter in its garb, which is never soiled with the dust of earth, for, leading an aerial 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 splendor, lives on their nectar, and only inhabits those climates in which they are unceasingly renewed.”

      Of all the birds that might receive the appellation, “The Bird of America,” to none could it be applied more truthfully than to the Hummingbird. For of all the families of birds that are distinctively peculiar to the Americas the Trochilidæ, or the Hummingbird family, contains the larger number of species. There are over five hundred species inhabiting North and South America and the adjacent islands, from Patagonia on the South to Alaska on the North. The species is more numerous in the tropics and but seventeen are known to frequent the United States. Of these only one, the ruby-throated hummingbird, exhibits its beauty east of the Mississippi River, and but seven species have their breeding range chiefly or entirely within the United States.

      “They abound most in mountainous countries, where the configuration of the surface and productions of the soil are most diversified within small areas. Their center of abundance is among the Northern Andes, between the parallels of ten degrees north and south of the equator, from which region they gradually diminish in numbers both to the northward and southward, but much more rapidly toward the extensive lowlands of the eastern portion of the continent.”

      A very interesting group, not so gem-like as many of their sister species, is the hermit hummers represented by a number of species that chiefly inhabit Brazil. These hummingbirds are notable for their plain colors, their plumage having but little of the lustrous metallic iridescence which is so marked a characteristic of the species with which we are more familiar and which frequent flowers in the bright sunshine. The laws of Nature seem to provide against excess even in coloration. The hermit hummers obtain their food only from the insect world, feeding upon those species found on the leaves of trees in deep forests. In such a home a gorgeous dress would be out of place and needless.

      Regarding their actions, Mr. Robert Ridgway says: “Hummingbirds are so distinct from other birds in their external structures and manner of flight that they present in every respect, except when at rest, an appearance entirely peculiar to themselves. They spend perhaps the greater part of their time upon the wing, usually hovering or balancing themselves before a flower from which they are procuring their sustenance of honey or of minute insects. At such time the body is nearly vertical or inclined at a slight angle, the head bent nearly at right angles with the axis of the body, the wings spread nearly at right angles with the same axis.” The motion of the wings, which is always rapid, may carry the bird in a horizontal direction or poise it in its vertical attitude directly over a flower. In this latter position the motion of the wings is so rapid that a mere haze appears on each side of the bird’s body. Mr. Gould, speaking of their flight, says “The bird does not usually glide through the air with the quick, darting flight of a swallow or swift, but continues tremulously moving its wings while passing from flower to flower, or when taking a more distant flight over a high tree or across a river.”

      Such a dainty dress as that worn by most of the hummingbirds deserves constant attention. Appreciating this these little lovers of sunshine are very fond of preening their beautiful feathers. While thus engaged they usually perch on a bare or dead twig in an exposed position. Truly fortunate is he who is afforded the opportunity of watching a hummingbird at this time. In this position various and graceful attitudes are assumed and the colors of the plumage are most beautifully exhibited. Mr. Audubon tells us that when perching the hummingbirds “move sidewise in prettily measured steps, frequently opening and closing their wings, pluming, stroking and arranging the whole of their apparel with neatness and activity.”

      Hummingbirds are very aggressive and show no fear, especially when defending their nests. They will furiously attack any bird or other animal that excites their enmity. They have been known to follow and annoy hawks and other birds much larger than themselves.

      Mr. Ridgway says: “In their disposition hummingbirds are not only very tame but highly curious or inquisitive, and exhibit a special propensity to closely inspect a human intruder to their domain.” This characteristic may be frequently noticed in the actions of our common ruby-throat. In spite of the fact that the hummingbirds are easily tamed and may even be induced to take food from the hand or from a flower so held as to attract their attention, they do not survive confinement for any length of time.

      Although the nectar of flowers forms a large part of their food, it has been shown that insects also form no inconsiderable portion.

      The high degree of intelligence possessed by the hummingbirds is shown in the construction of their nests. Some of the species make the nests “of such form or material as will serve to imitate natural excrescences of a branch, such as a knot or a pine cone.” Other species make a hammock-like nest that they suspend from cliffs by attaching spiders’ webs. Mr. Thomas M. Brewer writes: “Indeed, it is probable that there is no other family whose architectural achievements are more varied than those of the hummingbirds. These variations include not only the material of which the nests are made and the positions in which they are placed; but also the general style of their construction, exhibiting constant differences, in the several species, in the ingenuity and beauty displayed in each design.” Even individual species will change the usual plan of their nests in order to adapt them to the requirements of their environment. In favorable localities a new nest will be built each season on top of the old one of the year before. “The hermit hummingbirds fasten their elongated nests to one side of the extremity of long-pointed leaves for protection, it is supposed, against monkeys and other predaceous animals.”

      The eggs of the hummingbirds, invariably two in number, are white and free from spots. Though very small they are large when compared with the size of the bird that laid them. It is claimed by most authorities that under favorable conditions two broods are raised each season.

      The Anna’s Hummingbird of our illustration is one of the most striking of those best known. It is perhaps the most beautiful of the species that frequent the United States. It is a native of California and in its migrations passes southward through Arizona to the table-lands of Mexico. It is also found in Lower California.

      The head and ruff of the male have a lustrous metallic purplish red color. The female is bronze green above, though the top of the head is sometimes brownish, showing but little if any metallic luster. Both sexes vary somewhat in color. This is especially true of the males, some individuals having СКАЧАТЬ