XXV THE INDIAN WHITE-EYE

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The Indian white-eye (Zosterops palpebrosa) is a bird which should be familiar to everyone who has visited the Nilgiris. To wander far in a hillside wood without meeting a flock of these diminutive creatures is impossible. Sooner or later a number of monosyllabic notes will be heard, each a faint, plaintive cheep. On going to the tree from which these notes appear to emanate a rustle will be observed here and there in the foliage. Closer inspection will reveal a number of tiny birds flitting about among the leaves. These are white-eyes—the most sociable of birds. Except when nesting, they invariably go about in companies of not less than twenty or thirty. Each individual is as restless as a wren, so that some patience must be exercised by the observer if he wish to obtain a good view of any member of the flock. But by standing perfectly motionless for a time under the tree in which the birds are feeding he who is watching will, ere long, be able to make out that the white-eye is a tiny creature, not much more than half the size of a sparrow. The upper parts are yellowish green, the chin, throat, and feathers under the tail are bright yellow, and the remainder of the lower surface of whitish hue. The most marked feature of the Zosterops is a conspicuous ring of white feathers round the eye, which causes the bird to look as though it were wearing white spectacles. From this circle the species derives its popular names, the white-eye or spectacle bird. Thanks to the conspicuous eye-ring, it is impossible to mistake the bird.

All feathered creatures that go about in flocks and haunt thick foliage emit unceasingly a call note, by means of which the members of the flock keep in touch with one another. This ceaseless cheeping note is probably uttered unconsciously. Each individual listens, without knowing that it is doing so, for the calls of its fellows; so long as it hears these it is happy. When the main volume of the sound grows faint the individual white-eye knows that his companions are moving away from him; he accordingly flies in the direction from which their calls are coming, giving vent, as he goes, to a louder cheep than usual. Whenever a white-eye flies from one tree to another it utters this more powerful call and thereby informs its fellows that it is moving forward. This louder cry stimulates the others to follow the bird that has taken the lead. All the time they are thus flitting about the white-eyes are busy picking tiny insects off the leaves. I have never observed them eating anything but insects. Legge, however, asserts that their diet is for the most part frugivorous, in consequence of which the birds are, according to him, very destructive to gardens, picking off the buds of fruit trees, as well as attacking the fruit itself. He further declares that he has known caged individuals in England feed with avidity on dried figs. Hutton also states that white-eyes feed greedily upon the small black berries of a species of Rhamnus, common in the Himalayas. Notwithstanding the authorities cited, it is my belief that these little birds are almost exclusively insectivorous. They perform a useful work in devouring numbers of obnoxious insects, which they extract from flowers. In so doing their heads sometimes become powdered with pollen, so that the white-eyes probably, like bees and moths, render service to plants by carrying pollen from one flower to another.

The search for food does not occupy the whole day. Except at the nesting season, the work of birds is light. In the early morning the white-eyes feed industriously; so that by noon they have satisfied their hunger. They then flit and hop and fly about purely for pleasure. White-eyes, like all small birds, literally bubble over with energy. They are as restless as children. Once when walking through the Lawrence Gardens at Lahore in the days when they had not yet fallen into the clutches of that enemy of beautiful scenery, the landscape gardener, I came across a company of these charming little birds disporting themselves amid some low bushes near a plantation of loquat trees. First one little bird, then another, then a third, a fourth, a fifth, etc., dropped to the ground, only to return at once to the bush whence they came. A whole flock appeared to be taking part in this pastime. There were two continuous streams, one of descending and the other of ascending white-eyes. These might have been little fluffy, golden balls with which some unseen person was playing.

When the heat of the day is at its zenith, white-eyes, like most birds in India, enjoy a siesta. At this hour little gatherings of them may be seen, each bird huddled against its neighbours on some bough of a leafy tree.

At the nesting season the white-eye sings most sweetly. The ordinary cheeping note then becomes glorified into something resembling the lay of the canary; less powerful, but equally pleasing to the ear.

The nest of the white-eye is a neat little cup, or, as Mr. A. Anderson describes it, a hollow hemisphere. It is a miniature of the oriole’s nursery. It is large for the size of the bird, being usually over two inches in diameter. Some nests are fully two inches deep, while others are quite shallow. It is composed of fine fibres (i.e. grass stems, slender roots, moss, and seed down) and cotton, bound together by cobweb, which is the cement most commonly used by bird masons. The nursery is invariably provided with a lining. In one nest that I found, this lining consisted of human hair. Other lining materials are silky down, hair-like moss and fern-roots, and grass fibres so fine that the horsehairs which are sometimes utilised look quite coarse beside them. The most wonderful thing about the nest of this pretty little bird is the manner in which it is attached to its supports. I have called it a miniature of the oriole’s nursery, because it is usually suspended from two or more branches by cotton fibres. I once came upon a nest which was attached to but one slender branch, and to the tip of this. The end was worked into the structure of the nest so that the whole looked like a ladle with a very thin handle. It seemed incredible that so slight a branch could support the nest and its contents.

I have not been fortunate enough to watch the white-eye building its nest. Mr. A. Anderson states that the pair—for both the cock and the hen take part in nest construction—“set to work with cobwebs, and having first tied together two or three leafy twigs to which they intend to attach their nest, they then use the fine fibre of the sunn (Crotalaria juncea), with which material they complete the outer fabric of their very beautiful and compact nest. As the work progresses, more cobwebs and fibre of a silky kind are applied externally, and at times the nest, when tossed about by the wind (sometimes at a considerable elevation), would be mistaken by a casual observer for an accidental collection of cobwebs. The inside of the nest is well felted with the down of the madar plant, and then it is finally lined with fine hair and grass stems of the softest kind.” The nest is usually situated within three or four feet of the ground, but is sometimes placed at much higher elevations.

In South India, the time to look for white-eyes’ nests is from January to March. In the north, the majority of nests are found between April and June.

The eggs are a beautiful pale blue. Most commonly only two seem to be laid. There are, however, many cases on record of three and a few of four eggs. This is an unusually small clutch. Nevertheless it is unlikely that a pair of white-eyes bring up more than two broods in the year. These facts, when taken in conjunction with the wide distribution of the species, indicate that the white-eye meets with exceptional success in rearing its young. The nest is usually well concealed in the depths of a leafy bush. Squirrels and lizards must find the suspended nursery difficult of access. In addition to this we must bear in mind that white-eyes are plucky little creatures. Mr. Ball describes how he saw one of them attacking a rose-finch, a vastly more powerful bird, and drive it away from the flowers of the mohwa, which form a favourite hunting-ground of the white-eye.

As I have repeatedly stated, pugnacity is a more valuable asset than protective colouration in the struggle for existence.

Lastly, the white-eye appears able to thrive under greatly varying conditions of climate.

These advantages possessed by white-eyes, I think, explain why the clutch of eggs is so small.

White-eyes make excellent pets. They will live amicably along with amadavats in a cage. Finn is my authority for saying that soft fruit, bread and milk, and small insects are all the food required by white-eyes, and they are so easy to keep that many specimens are sent to Europe.

                                                                                                                                                                                                                                                                                                           

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