A Bird Calendar for Northern India

by Douglas Dewar

With July ends the normal breeding season of the tree-pies, white-eyes, ioras; king-crows, bank-mynas, paradise flycatchers, brown rock-chats, Indian robins, dhayals, red-winged bush-larks, sunbirds, rollers, swifts, green pigeons, lapwings and butcher-birds.

The paradise flycatchers leave Northern India and migrate southwards a few weeks after the young birds have left the nest.

Numbers of bulbuls' nests are likely to be found in July, but the breeding time of these birds is rapidly drawing to its close. Sparrows and doves are of course engaged in parental duties; their eggs have been taken in every month of the year.

The nesting season is now at its height for the white-necked storks, the koels and their dupes—the house-crows, also for the various babblers and their deceivers—the brain-fever birds and the pied crested cuckoos. The tailor-birds, the ashy and the Indian wren-warblers, the brahminy mynas, the wire-tailed swallows, the amadavats, the sirkeer cuckoos, the pea-fowl, the water-hens, the common and the pied mynas, the cuckoo-shrikes and the orioles are all fully occupied with nursery duties. The earliest of the brain-fever birds to be hatched have left the nest. Like all its family the young hawk-cuckoo has a healthy appetite. In order to satisfy it the unfortunate foster-parents have to work like slaves, and often must they wonder why nature has given them so voracious a child. When it sees a babbler approaching with food, the cuckoo cries out and flaps its wings vigorously. Sometimes these completely envelop the parent bird while it is thrusting food into the yellow mouth of the cuckoo. The breast of the newly-fledged brain-fever bird is covered with dark brown drops, so that, when seen from below, it looks like a thrush with yellow legs. Its cries, however, are not at all thrushlike.

Many of the wire-tailed swallows, minivets and white-browed fantail flycatchers bring up a second brood during the rains. The loud cheerful call of the last is heard very frequently in July.

Numbers of young bee-eaters are to be seen hawking at insects; they are distinguishable from adults by the dullness of the plumage and the fact that the median tail feathers are not prolonged as bristles.

Very few crows emerge from the egg before the 1st of July, but, during the last week in June, numbers of baby koels are hatched out. The period of incubation for the koel's egg is shorter than that of the crow, hence at the outset the baby koel steals a march on his foster-brothers. Koel nestlings, when they first emerge from the egg, differ greatly in appearance from baby crows. The skin of the koel is black, that of crow is pink for the first two days of its existence, but it grows darker rapidly. The baby crow is the bigger bird and has a larger mouth with fleshy sides. The sides of the mouth of the young koel are not fleshy. The neck of the crow nestling is long and the head hangs down, whereas the koel's neck is short and the bird carries its head huddled in its shoulders. Crows nest high up in trees, these facts are therefore best observed by sending up an expert climber with a tin half-full of sawdust to which a long string is attached. The climber lets down the eggs or nestlings in the tin and the observer can examine them in comfort on terra firma. The parent crows do not appear to notice how unlike the young koels are to their own nestlings, for they feed them most assiduously and make a great uproar when the koels are taken from the nest. Baby crows are noisy creatures; koels are quiet and timid at first, but become noisier as they grow older.

The feathers of crow nestlings are black in each sex. Young koels fall into three classes: those of which the feathers are all black, those of which a few feathers have white or reddish tips, those which are speckled black and white all over because each feather has a white tip. The two former appear to be young cocks and the last to be hens. Baby koels, in addition to hatching out before their foster-brethren, develop more quickly, so that they leave the nest fully a week in advance of the young corvi. After vacating the nest they squat for some days on a branch close by; numbers of them are to be seen thus in suitable localities towards the end of July. At first the call of the koel is a squeak, but later it takes the form of a creditable, if ludicrous, attempt at a caw. The young cuckoo does not seem to be able to distinguish its foster-parents from other crows; it clamours for food whenever any crow comes near it.

Of the scenes characteristic of the rains in India none is more pleasing than that presented by a colony of nest-building bayas or weaver-birds (Ploceus baya). These birds build in company. Sometimes more than twenty of their wonderful retort-like nests are to be seen in one tree. This means that more than forty birds are at work, and, as each of these indulges in much cheerful twittering, the tree in question presents an animated scene. Both sexes take part in nest-construction.

Having selected the branch of a tree from which the nest will hang, the birds proceed to collect material. Each completed nest contains many yards of fibre not much thicker than stout thread. Such material is not found in quantity in nature. The bayas have, therefore, to manufacture it. This is easily done. The building weaver-bird betakes itself to a clump of elephant-grass, and, perching on one of the blades, makes a notch in another near the base. Then, grasping with its beak the edge of this blade above the notch, the baya flies away and thus strips off a narrow strand. Sometimes the strand adheres to the main part of the blade at the tip so firmly that the force of the flying baya is not sufficient to sever it. The bird then swings for a few seconds in mid-air, suspended by the strip of leaf. Not in the least daunted the baya makes a fresh effort and flies off, still gripping the strand firmly. At the third, if not at the second attempt, the thin strip is completely severed. Having secured its prize the weaver-bird proceeds to tear off one or two more strands and then flies with these in its bill to the nesting site, uttering cries of delight. The fibres obtained in this manner are bound round the branch from which the nest will hang. More strands are added to form a stalk; when this has attained a length of several inches it is gradually expanded in the form of an umbrella or bell. The next step is to weave a band of grass across the mouth of the bell. In this condition the nest is often left unfinished. Indians call such incomplete nests jhulas or swings; they assert that these are made in order that the cocks may sit in them and sing to their mates while these are incubating the eggs. It may be, as "Eha" suggests, that at this stage the birds are dissatisfied with the balance of the nest and for this reason leave it. If the nest, at this point of its construction, please the weaver-birds they proceed to finish it by closing up the bell at one side of the cross-band to form a receptacle for the eggs, and prolonging the other half of the bell into a long tunnel or neck. This neck forms the entrance to the nest; towards its extremity it becomes very flimsy so that it affords no foothold to an enemy. Nearly every baya's nest contains some lumps of clay attached to it. Jerdon was of opinion that the function of these is to balance the nest properly. Indians state that the bird sticks fireflies into the lumps of clay to light up the nest at night. This story has found its way into some ornithological text-books. There is no truth in it. The present writer is inclined to think that the object of these lumps of clay is to prevent the light loofah-like nest swinging too violently in a gale of wind.