Part 84

"The nests are of two distinct types. One as above described; the other, which is the commoner of the two, a regular Tailor-bird's nest stitched between two leaves but without any lining. The eggs vary a good deal in shade, some being paler than others. Some eggs I have look almost like little balls of red carnelian. Creepers (convolvulus &c.) growing up low thorny bushes in grass-beerhs are a favourite place for the nest."

Lieut. H.E. Barnes informs us that in Rajputana this Warbler breeds from July to September.

Messrs. Davidson and Wenden state that this bird is common in the Deccan and breeds in August.

Mr. Rhodes W. Morgan, writing from South India, says:--"It builds in March, constructing a very neat pendent nest, which is artfully concealed, and supported by sewing one or two leaves round it. This is very neatly done with the fine silk which surrounds the eggs of a small brown spider. The nest is generally built of fine grass, and contains three eggs of a bright brick-colour with a high polish. The entrance to the nest is at the top and a little on one side. An egg measured 0·7 inch in length by 0·48 in breadth."

As for the eggs, it is unnecessary to describe them; they are precisely similar to those of P. stewarti, fully described below. All that can be said is that as a body they are slightly larger, and possibly, as a whole, the least shade less dark. In length they vary from 0·52 to 0·72, and in breadth from 0·45 to 0·52; but the average of twenty-one eggs measured is 0·64 by rather more than 0·47.

Prinia stewarti.

Stewart's Wren-Warbler is one of those forms in regard to which at present great difference of opinion prevails as to whether or no they merit specific separation. P. stewarti from the N.W. Provinces and P. socialis from the Nilghiris differ only in size; the latter is somewhat more robust, and probably weighs one fifth more than the former. But then in the Central Provinces you meet with intermediate sizes, and I have plenty of birds which might be assigned indifferently to either race as a rather small example of the one or rather large one of the other. I myself consider all to belong to one species, but as this is not the general view I have kept my notes on their nidification separate.

This species or race breeds almost throughout the plains of Upper India and in the Sub-Himalayan ranges to an elevation of 3000 or 4000 feet. In the plains the breeding-season extends from the first downfall of rain in June (I have never found them earlier) to quite the end of August. In the moist Sub-Himalayan region, the Terais, Doons, Bhaburs, and the low hills, they commence laying nearly a month earlier.

This species often constructs as neatly sewn a nest as does the Orthotomus; in fact, many of the nests built by these two species so closely resemble each other that it would be difficult to distinguish them were there not very generally a difference in the lining. With few exceptions all the innumerable nests of O. sutorius that I have seen were lined with some soft substance--cotton-wool, the silky down of the cotton-tree(Bomlax heptaphyllum) grass-down, soft horsehair, or even human hair, while the nests of P. stewarti are almost without exception lined with fine grass-roots.

Our present bird does not, however, invariably construct a "tailored" nest. When it does, like O. sittorius, it sews two, three, four, or five leaves together, as may be most convenient, filling the intervening space with down, fine grass, vegetable fibre, or wool, held firmly into its place by cross-threads, sometimes composed of cobwebs, sometimes made by the bird itself of cotton, and sometimes apparently derived from unravelled rags. It also, however, often makes a nest entirely composed of fine vegetable fibre, cotton, and grass-down, and lined as usual with fine grass-roots. Sometimes these nests are long and purse-like, and sometimes globular, either attached to, or pendent from, two or more twigs. One nest before me, a sort of deep watch-pocket, suspended from five twigs of the jhao (Tamarix dioica), measures externally 2·75 inches in diameter, is a good deal longer at what may be called the back than the front, and at the back fully 5·5 long. Internally the diameter is about 1·5, and the cavity, measuring from the lowest portion of the external rim, is 2·5. This is a very large nest. Another, built between three leaves, has an external diameter of about 2½ inches, and is externally not above 3 inches long. It is unnecessary here to describe the beautiful manner in which, when it makes use of leaves, this bird sews them together, as this has already been well described by others where O. sutorius is concerned, and P. stewarti is, in some cases, when forming a nest with leaves, fully as neat a workman.

The nests vary so much, and I have heard so much, discussion about them, that having seen at least a hundred and having taken full notes of some twenty of them, I shall reproduce a few of these notes:--

"Agra, July 17th.--Two nests--one nearly globular, composed entirely of fibrous roots, hair, wool, and thread, and lined with fine grass, suspended by a few fibres and hairs between the fork of a branchlet in a little dense bush of Indian box; the other, suspended from the tendril of an elephant creeper, was principally formed by one of the leaves of this, to which, to form the remaining third of the exterior, a second leaf of the same plant was carefully sewn. Interiorly there was a little wool, and at the bottom fine grass.

"July 20th.--On a furash-tree (Tamarix furas), beautifully made of fine soft wool, shreds of tow and string, very fine grass and grass-roots, and the bottom neatly lined with very fine grass-roots. In shape the nest is like one half of a long old-fashioned silk purse, round-bottomed and very compact, with a long slit-like opening on one side towards the top. It contained five eggs.

"July 26th.--Two nests, one formed almost entirely in a single mango-leaf, the sides of which are curled round so as nearly to meet, and then laced by a succession of cross-threads of cobweb, carefully knotted at each place where the margin of the leaf is pierced. The intervening space is closed by fine tow, wool, and the silky down of the cotton-tree, with just the top of a small mango-leaf caught in from above so as to form an arched roof. The other nest was rounder in form, having less of a leafy structure. It had, however, the leaf of the Phalsa forming the back and sides (partly), whilst the whole of the front was composed of soft wool, tow, dry grass-roots, thread, and a few pieces of the soft tree-cotton. It had a neighbouring leaf just caught in on one side. This contained four fresh eggs.

"July 30th.--A beautiful nest between three twigs, several of the leaves of each of which had been tacked on to the outside of the nest. The nest itself was firmly put together with fine grass-roots, and was nearly globular in shape, with one side continued upwards into a sort of hood overhanging the greater portion of the aperture. It contained four eggs of the usual deep red colour.

"August 8th.--At Bichpoori found a number of nests, and some of them of a strangely different type. One was inside a tiny hut on the line, about 3 feet above the head of the chaprassie's bed. It had no leaves about it, and was composed of thread, wool, and a few very fine grass-stems, and lined thinly with fine grass-stems and a little black horsehair. It was about two thirds of a sphere, the external diameter of which was about 3¼ inches, and the internal 2½ inches. The bird was on the nest, so that there could be no mistake, otherwise it would have been impossible to believe that it belonged to P. stewarti, of which we have taken so many sewn in leaves. A little further on another nest of the same species, built in the ragged eaves of a thatch, externally composed almost entirely of cotton-wool, with a little tow-fibre binding the structure together, internally as usual lined with very fine grass-roots with a few horsehairs. Another nest of the Prinia was in one respect even more remarkable. It was built in the usual situation in a low herbaceous plant, sewn to and suspended from two leaves, and two or three others worked into its sides. It was constructed almost entirely of fine grass-roots and fibres, with a few tiny tufts of cotton-wool, and the leaves as usual firmly tacked on with threads and cobweb fibres. It would seem that, after constructing the nest, but before laying, a large female spider took possession of the bottom of the nest, and shut herself in by constructing a diaphragm of web horizontally across the nest, thus occupying the whole of the cavity of the nest. The little bird accepted this change of circumstances, built the nest a little higher at the sides, and over the spider's web placed a false bottom of fine grass-roots, on which she laid her four eggs, and there she was sitting when the nest was taken, the spider, alive and apparently happy in the cell below, plainly visible through the interstices of the grass, with a huge sac of eggs which she was incubating. Her chamber is fully one half of the nest."

I may add that this latter nest, with the now dead spider, in situ, is still in our museum.

In number the eggs are sometimes four, sometimes five, and I have heard of six being found.

They rear usually two broods; if their eggs are taken they will lay three or four sets; sometimes they use the same nest twice; sometimes, directly the first brood is at all able to shift for themselves, the parents leave them in the old nest, and commence building a new one at no great distance.

The late Mr. A. Anderson remarked:--"Owing to the inclemency of the weather (August) the geranium-pots in the garden were placed in the verandah of the house I am at present living in, and, strange to say, a pair of these Warblers commenced building in the leaves of one of the plants immediately under my window.

"When the nest was about half-finished the birds' forsook it without apparently any reason, as they were never molested in any way. On examining the nest, however, the cause was evident, and afforded a remarkable instance of instinct on the part of the little architects. The leaves that had been pierced and sewn together had actually commenced to wither, and in the course of a few days later the whole structure came down bodily.

"This is the only Prinia to be found at Futtehgurh, and they are one of our most common garden-birds. Their beautiful brick-red eggs and neatly-sewn nests are too well known to require description.

"Four generally, and five frequently, is the number of eggs they lay. I have one record of six on the 17th August, 1873; in this case one egg was laid daily, the first having been laid on the 12th, and the sixth on the 17th."

Captain Hutton remarks:--"This is a true Tailor-bird in respect to the construction of the nest, which is composed of one leaf as a supporting base stitched to two others meeting it perpendicularly, the apices of all three being neatly sewn together with threads roughly spun from the cottony down of seeds. Between or within these leaves is placed the nest, very slightly and loosely constructed of fine roots, grass-stalks, and seed-down, the latter material being interwoven to hold the coarser fibres of the nest together. There is no finer lining within, and the edges of the exterior leaves are drawn together round the nest and held there partly by roughly-spun threads of down, and partly by the ends of the stiff fibres being thrust through them. The whole forms a very light and graceful fabric. Within this nest were four beautiful and highly polished eggs of a deep brick-red colour, darkest at the larger end, faint specks and blotches of a deeper colour being indistinctly discernible beneath the surface of the shell, which shines as if it had been varnished. The nest is not closed above, but is open and deeply cup-shaped. This was taken in the Dhoon on the 30th May."

Major C.T. Bingham says:--"Breeds at Allahabad in June, July, and August. At Delhi I have not yet found its nest. I once found in July three nests all attached together in a sort of triangle, but whether built by separate pairs of birds I cannot say. Only one nest contained eggs."

Colonel G.F.L. Marshall writes:--"A nest found in July in the Cawnpoor district was built of grass, a deep oblong domed nest with the entrance at the side near the top. It was placed close to the ground in a tuft of surkerry grass sloping rather backwards. The position is, I believe, unusual. The old birds were still putting finishing touches to the building when I found it."

The eggs are ovals, as a rule, neither very broad nor much elongated. Pyriform examples occur, but a somewhat perfect oval is the usual type, and the examination of a large series shows that the tendency is to vary to a globular and not to an elongated shape. The eggs are brilliantly glossy, and, though considerably smaller, strongly resemble, as is well known, those of the little short-tailed Cetti's Warbler.

In colour they are brick-red, some, however, being paler and yellower, others deeper and more mahogany-coloured. There is a strong tendency to exhibit all ill-defined cloudy cap or zone, of far greater intensity than the colour of the rest of the egg, at or towards the large end.