A Bird Calendar for Northern India

by Douglas Dewar

Comparatively few birds build their nests in January. Needless to state, doves' nests containing eggs may be found at this season as at all other seasons. It is no exaggeration to assert that some pairs of doves rear up seven or eight broods in the course of the year. The consequence is that, notwithstanding the fact that the full clutch consists of but two eggs, doves share with crows, mynas, sparrows and green parrots the distinction of being the most successful birds in India.

The nest of the dove is a subject over which most ornithologists have waxed sarcastic. One writer compares the structure to a bundle of spillikins. Another says, "Upset a box of matches in a bush and you will have produced a very fair imitation of a dove's nursery!" According to a third, the best way to make an imitation dove's nest is to take four slender twigs, lay two of them on a branch and then place the remaining two crosswise on top of the first pair. For all this, the dove's nest is a wonderful structure; it is a lesson in how to make a little go a long way. Doves seem to place their nurseries haphazard on the first branch or ledge they come across after the spirit has moved them to build. The nest appears to be built solely on considerations of hygiene. Ample light and air are a sine qua non; concealment appears to be a matter of no importance.

In India winter is the time of year at which the larger birds of prey, both diurnal and nocturnal, rear up their broods. Throughout January the white-backed vultures are occupied in parental duties. The breeding season of these birds begins in October or November and ends in February or March. The nest, which is placed high up in a lofty tree, is a large platform composed of twigs which the birds themselves break off from the growing tree. Much amusement may be derived from watching the struggles of a white-backed vulture when severing a tough branch. Its wing-flapping and its tugging cause a great commotion in the tree. The boughs used by vultures for their nests are mostly covered with green leaves. These last wither soon after the branch has been plucked, so that, after the first few days of its existence, the nest looks like a great ball of dead leaves caught in a tree.

The nurseries of birds of prey can be described neither as picturesque nor as triumphs of architecture, but they have the great merit of being easy to see. January is the month in which to look for the eyries of Bonelli's eagles (Hieraetus fasciatus); not that the search is likely to be successful. The high cliffs of the Jumna and the Chambal in the Etawah district are the only places where the nests of this fine eagle have been recorded in the United Provinces. Mr. A. J. Currie has found the nest on two occasions in a mango tree in a tope at Lahore. In each case the eyrie was a flat platform of sticks about twice the size of a kite's nest. The ground beneath the eyrie was littered with fowls' feathers and pellets of skin, fur and bone. Most of these pellets contained squirrels' skulls; and Mr. Currie actually saw one of the parent birds fly to the nest with a squirrel in its talons.

Bonelli's eagle, when sailing through the air, may be recognised by the long, hawk-like wings and tail, the pale body and dark brown wings. It soars in circles, beating its pinions only occasionally.

The majority of the tawny eagles (Aquila vindhiana) build their nests in December. By the middle of January many of the eggs have yielded nestlings which are covered with white down. In size and appearance the tawny eagle is not unlike a kite. The shape of the tail, however, enables the observer to distinguish between the two species at a glance. The tail of the kite is long and forked, while that of the eagle is short and rounded at the extremity. The Pallas's fishing-eagles (Haliaetus leucoryphus) are likewise busy feeding their young. These fine birds are readily identified by the broad white band in the tail. Their loud resonant but unmelodious calls make it possible to recognise them when they are too far off for the white tail band to be distinguished.

This species is called a fishing-eagle; but it does not indulge much in the piscatorial art. It prefers to obtain its food by robbing ospreys, kites, marsh-harriers and other birds weaker than itself. So bold is it that it frequently swoops down and carries off a dead or wounded duck shot by the sportsman. Another raptorial bird of which the nest is likely to be found in January is the Turumti or red-headed merlin (Aesalon chicquera). The nesting season of this ferocious pigmy extends from January to May, reaching its height during March in the United Provinces and during April in the Punjab.

As a general rule birds begin nesting operations in the Punjab from fifteen to thirty days later than in the United Provinces. Unless expressly stated the times mentioned in this calendar relate to the United Provinces. The nest of the red-headed merlin is a compact circular platform, about twelve inches in diameter, placed in a fork near the top of a tree.

The attention of the observer is often drawn to the nests of this species, as also to those of other small birds of prey and of the kite, by the squabbles that occur between them and the crows. Both species of crow seem to take great delight in teasing raptorial birds. Sometimes two or three of the corvi act as if they had formed a league for the prevention of nest-building on the part of white-eyed buzzards, kites, shikras and other of the lesser birds of prey. The modus operandi of the league is for two or more of its members to hie themselves to the tree in which the victim is building its nest, take up positions near that structure and begin to caw derisively. This invariably provokes the owners of the nest to attack the black villains, who do not resist, but take to their wings. The angry, swearing builders follow in hot pursuit for a short distance and then fly back to the nest. After a few minutes the crows return. Then the performance is repeated; and so on, almost ad infinitum. The result is that many pairs of birds of prey take three weeks or longer to construct a nest which they could have completed within a week had they been unmolested.