Cassell's book of birds; vol. 1

Part 26

Chapter 263,934 wordsPublic domain

It is generally considered that the Social Weaver Bird never crosses the Orange river, though how far it may penetrate in a northerly direction has not as yet been ascertained. Patterson, who wrote at the end of the last century, mentions having seen mimosa forests densely inhabited by these birds, who congregate in the hope of preserving their eggs from the numerous snakes. For this purpose, hundreds of them build their nests beneath one large roof, resembling a thatched house in its appearance. This roof (see p. 168) is fixed to a large branch or portion of the tree, and under it the actual nests are placed so closely together that it would be quite impossible for a snake or any other enemy to penetrate to the interior. All day long the busy crowd of workers hurry to and fro, resembling a swarm of bees in their industry, and, like them, return laden with everything needful for the construction or improvement of their homes, while year by year the settlement increases in size, until at last the tree literally bends beneath the weight of the superincumbent colony. The entrances to the interior are very numerous, and situated underneath the massive edifice, each opening leading to a kind of corridor or street, on both sides of which are the small and very secure apartments provided for the young. These birds subsist upon the seeds of the grasses employed in the construction of their dwellings. The above account has been verified by Mr. A. Smith, a well-known traveller and naturalist, from whom we learn that each couple works at its own portion of the building, all co-operating, however, in the common endeavour to concentrate the nests under one substantial straw thatch, and thus ensure the safety of the whole flock. These aerial cities are generally built upon large branches at a considerable elevation, but the Tree Aloe is occasionally selected as affording suitable support. The brood of the Social Weaver Bird consists of three or four blueish-white eggs, marked with small brown spots at their broadest end. The young are fed entirely upon insects, which are only occasionally eaten by the parents.

THE GOLDEN WEAVER BIRD.

The GOLDEN WEAVER BIRD (_Ploceus galbula_), the type of a numerous group, is an inhabitant of Eastern Soudan. This bird and its congeners are all slenderly formed, and of moderate dimensions, possessing a slightly curved and shallow beak, the base of which appears to join the forehead at an acute angle; the feet are strong, the wings moderately long, reaching past the tail-covers; the tail is of medium length, and abruptly rounded; the third, fourth, and fifth quill-feathers are the longest, the first being rudimentary. The adult male is a most beautiful creature, the top and sides of its head, and all the lower portion of its body, being of a bright lemon colour. The region of the eyes, and the parts around the lower mandible are bright red; the back and wing-covers a brilliant green, with darker shafts to the feathers; the quills and tail are reddish brown, bordered with yellowish green; the iris is reddish brown, the beak black, and the feet yellow. In the female the forehead is of a greenish yellow; the back of the head, nape of neck, and mantle bright green; the shafts of the feathers are of a deeper shade; the throat is a dirty white, the upper mandible deep brown, the lower one somewhat paler. The young male resembles the mother, but is distinguished by the dusky yellow upon its throat.

The Golden Weaver Bird is common in Abyssinia and the surrounding countries, where it may be often seen flying about in company with its congener the Green Weaver Bird, but never joining with it in the construction of a settlement. In their habits these birds are closely allied to other Finches, and are lively, active, and extremely social. At such times as the work of building the nests or rearing their young is not going on, they generally congregate in large flocks, and perch on the very summits of the trees, pouring forth their song for the delight of the female part of the community, until they are inclined to go in search of food. About noon all is hushed, for at this time the cunning Weavers are going down to drink, an operation requiring the greatest circumspection and care, as their enemies the Falcons are peeping at them over the trees, and ready to pounce upon them at a moment's notice. They now assemble in the bushes near the water side, frequently to the number of some thousands, where they scream and chatter much after the manner of our Sparrows. Suddenly, with one swoop, the little creatures reach the desired stream, take a hasty draught, and are back again to the thickets before their much dreaded foes have time to recover from their surprise and follow in pursuit. This proceeding is repeated some ten or a dozen times during the hour that is devoted to quenching their thirst, before they again commence their search for food. When the labours of the afternoon are over, all again return to the favourite tree, to sing their songs, and sleep away the night. In Soudan the moulting season commences about July or August, and after that is over the flock are employed in making long excursions until the period of incubation returns. Most species breed twice in the year. The following description of the Golden Weaver Bird's nest was written some years ago upon the spot, where we were fortunate enough to have opportunities of observing the manner of its construction:--The operation is commenced by placing long blades of grass at equal distances from each other, and fastening them together with so much exactness that a kind of framework is prepared, in which the form of the edifice is plainly discernible. The next step is to make the walls, by weaving in long straws; great care being taken to lay them in a downward direction, and thus render the roof water-tight. At this stage the beautiful fabric presents the appearance of a cone, placed upon the half of a ball. An entrance to its interior is next obtained by constructing a long tubular passage, extending downwards from a hole at the side, quite to the bottom of the nest, to the exterior of which it is firmly attached. The interior is lined with soft stems of grasses, and very frequently the birds may be seen employed upon this wonderful structure, even after the eggs have been laid; these latter, from three to five in number, are at first white, then red, and only gradually acquire their green colour. From Heuglin we learn that the male undertakes the principal labour of constructing his own abode, and that he may frequently be found building it, as though in anticipation, at times when he has no especial need of a nest. As far as we could ascertain, the care of brooding devolves entirely upon the female; she is, however, assiduously tended by her mate, who likewise shares her toils when the time comes for feeding the nestlings. This latter duty is performed so diligently that scarcely a minute elapses between the arrivals of the parents bringing supplies to satisfy the gaping young; they hang upon the lower part of the nest, thrusting in their heads and placing the morsel into the outstretched beaks of their hungry progeny. At such times, when the nests are numerous and placed closely together, a settlement of Weaver Birds can be compared to nothing but a bee-hive, as the inhabitants perpetually fly backwards and forwards in one unceasing bustle and confusion. These birds are occasionally, but very rarely, brought to Europe.

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The BAYAS (_Nelicurvius_). The members of this remarkable group inhabit the whole of Southern Asia, including the neighbouring islands, and are characterised by the formation of the beak, which is somewhat prolonged, with the ridge vaulted, and joining on to the forehead almost in a straight line. The wings, of which the fourth quill is the longest, are of moderate length, the tail is short, the feathers being of equal size and sharply pointed, the tarsus strong, and of medium height; the coloration of the plumage is by no means bright.

THE BAYA.

The BAYA (_Nelicurvius Baya_), the most celebrated of the race, is of a dark brown upon the upper portion of its body, and all the feathers, particularly those of the wing and tail covers, are bordered with yellowish white; the breast is marked with light brown, the shafts of the feathers being of a deeper shade. The face and front of the throat are black, the top of the head bright yellow, and the primary quills edged with a narrow yellow line. The female is without the black and yellow upon the head, the eyebrows are pale, the breast and chin of a whitish shade. The winter coat of the adult male is like that of the female; in the young male the breast is pale red. The beak is horn colour, the iris brown, the feet flesh coloured, the eye dark blue. The length of this bird is six inches, and its breadth nine and a half inches; the wing measures two inches and four-fifths, and the tail two inches. This species is found extensively throughout India, Assam, Burmah, and the Malayan peninsula, frequenting woodlands in large numbers; it is much more rarely met with in the highlands of the Deccan. Corn, rice, and various kinds of grass-seeds constitute its principal food, but we have never been able to ascertain from our own observation that it will eat fruit. The Bayas breed during the rainy season, which occurs between April and September, according to the locality, and associate freely with other species. Their very curious nests, which in shape resemble a retort, are models of neat and compact architecture: these structures are generally hung from the branches of palms, or other trees, and in India we have never seen them elsewhere; in Burmah, on the contrary, it is not uncommon to find them suspended from the eaves of houses, or from the huts of the natives, some twenty or thirty in a row. On one occasion we observed not fewer than a hundred of these strange appendages hanging to the roof of one house, and the little occupants living on excellent terms with their human neighbours; it is, therefore, very remarkable that this same species in some places should occupy the most quiet and isolated situations, only visiting such districts as are but little frequented by man. The walls of the Baya's nest are composed of blades of grass, gathered while still green, or of strips of leaves, frequently those of the palm-tree, woven carefully together, the shape of the little edifice varying according to circumstances or the taste of its owner. As soon as the chamber allotted to the eggs is fully completed, the bird proceeds to build a partition wall, thus forming a second apartment, supposed by some naturalists to be the especial property of the male, whilst others imagine that it is only intended to separate the entrance passage from the cradle of the nestlings. The entrance is tubular, and is very strongly and firmly constructed, being destined to serve as the favourite sitting-room of the whole family, when the young birds have acquired sufficient strength. No sooner is the second chamber of which we have spoken completed than the female, who has hitherto worked with her mate, retires into the part designed for her eggs, and occupies herself in weaving together the fine grass with which the interior is lined, the materials for the work being brought to her by the male bird, who alone continues the building of the passage and exterior portions of the nest. When this part of the work is concluded, the little artisan proceeds to carry in the lumps of clay, about the use of which so many opinions have been expressed. The natives assert that to these pieces of clay the male affixes fire-flies, to illumine the interior of the nest. Layard imagines them to be employed by the little builder as a whetstone whereon to whet its beak, whilst we ourselves are of opinion that they serve merely as a means of weighting the structure as it hangs suspended in the air, and have many times remarked that an unfinished nest contained more clay-balls than one that was completed. Very various accounts are given as to the number of eggs that form a brood; we have never found more than three, and feel sure that in cases where six or seven have been discovered two females must have occupied the nest. Young Bayas are frequently tamed, and form a most interesting and attractive addition to an aviary.

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The CRIMSON-BEAKED WEAVER BIRDS constitute a separate group, distinguished by the unusual height and depth of their beak, which is nearly equal to two-thirds of its entire length; in shape it is slightly arched, and compressed towards its edges. The wings reach to the middle of the tail, which is short, but slightly graduated and rounded at its extremity; the plumage is brownish, spotted on the lower portion of the body when the bird is young, becoming at a later period of a yellowish or reddish shade.

THE CRIMSON-BEAKED WEAVER BIRD.

The CRIMSON-BEAKED WEAVER BIRD, or DIOCK (_Quelea sanguinirostris_), is about four inches and ten lines long, and seven inches and ten lines broad; the wing two inches, the tail rather more than one inch. The iris is brown, the beak brownish red, and the feet pale red. The plumage of this species varies considerably, according to the time of year. During the breeding season, the coat of the male is chiefly of a yellowish red; the face, forehead, cheeks, and throat black, the mantle appearing of a greenish brown, mingled with a black shade that shines through from the shafts of the feathers; these latter are edged with a red tinge; the wing and tail feathers are black; the exterior web of the quills bordered with lemon colour. The female and young birds are without the black upon the face. Very shortly after the breeding season the male dons his winter coat, in which the throat and belly are of a dirty white, and the breast and sides of a dull yellow, all the feathers having faint lines upon their shafts. The whole of the upper part of the body is a dark greenish grey, the feathers of the mantle and nape of the neck being bordered with yellow; the tail is brownish grey; the third, fourth, and fifth quills, and the five exterior tail-feathers are gold colour, the rest of a paler shade. The male is without the black face during the winter months.

The Queleas must be regarded as by far the most numerous of the race of Weaver Birds. In Soudan they are met with in enormous flocks, and are certainly the commonest of the feathered inhabitants of Central and Western Africa. We ourselves have seen twenty-seven brought down at a single shot. The habits of the Diocks resemble those of other Weavers, but, unlike most of them, they fly over the country, or perch upon the river banks in flocks that number several thousands, many of which are of other species. When in confinement these birds will carry on their building operations with great industry, employing coloured thread, if given to them, as a substitute for other materials. We have, moreover, been told that feathers, yarns, and worsteds of brilliant hues are much preferred for this purpose, and that the designs constructed from them are sometimes extremely beautiful, but we cannot vouch for this from our own experience. Reichenbach speaks of their manners in a way that is by no means flattering. He tells us that the Crimson Beak is a most quarrelsome, restless creature, and quite unfit to be placed in a cage with other birds of smaller size, whom it never ceases to torment in every conceivable manner; one very favourite method being to seize its companion by the tail, and hold it thus suspended in the air for several seconds, the tormentor meanwhile uttering cries expressive of its own enjoyment of this, for a bird, very original pastime. It will sometimes only relinquish its hold when the victim has successfully counterfeited death from this cruel treatment. If not quite in the humour for such _active_ amusement, the Crimson Beak contents itself with pulling out the feathers of its playmates, who never seem to dream of opposing force to force, and quietly submit to all its persecutions. When confined with others of its own species, it is but little more conciliatory in its manners, squabbles and fighting appearing to form the principal diversion of the males, and even the females are not always exempted from the disagreeable results occasioned by the decidedly eccentric tempers of their mates. Their nests are suspended from the topmost branches of trees, and are constructed of various dry materials woven together while rendered flexible by the moisture sprinkled over them by the birds, who use their claws when fastening down the various parts, the beak at the same time doing its full share in carefully smoothing and arranging the fibres into a proper state of neatness and order. The little couple work together, apparently quarrelling the whole time; the male usually appropriates to himself the business of constructing the exterior, while the female is busy within, and the flexible stems employed being passed from one to the other. The nest when completed is round in shape, the front, where the entrance is situated, being somewhat straighter than the rest; the whole fabric resembles a nicely padded willow basket. The birds work for not more than three or four hours at a time, but so industriously that only about eight days are occupied in building their wonderfully beautiful home.

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The TAHA may be selected as an example of a group of Weaver Birds distinguished by their black plumage. These birds have a few Abyssinian congeners also called Taha; in all of them the body is compact, the wings and tail small, and the beak short, strong, and conical; the upper mandible being slightly arched. The wings reach to the middle of the very short tail; the first quill is almost rudimentary, the third longest of all; the tail-feathers are of nearly equal length.

THE TAHA.

The TAHA (_Taha dubia_) is of a beautiful bright yellow upon its head, back, shoulders, upper and lower tail-covers, and hinder part of the body. The wings and tail are a blackish brown, and all the feathers bordered with the same tint; the rest of the plumage is black; the female and young male during the winter months are blackish brown above and light grey beneath, some of the feathers having deep grey shafts, while others are edged with reddish brown. The length of this elegant little bird is about four inches, of which only one belongs to the very short tail. This species is a native of Southern Africa, and is seldom found farther north than the centre of that continent. During the breeding season it seeks refuge in the fields of corn or reeds, to the stems of which it hangs its purse-shaped nest. In its habits it resembles the Fire Finches, which we are about to describe.

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The FIRE FINCHES (_Euplectes_) constitute one of the most brilliant of all the many beautiful groups of Weaver Birds. Few sights that meet the eye of the traveller in the regions watered by the Nile are at once so striking and so splendid as that presented by a flock of these glowing creatures, as they dart in masses over the green fields of _durrah_, looking, when the sun sheds his rays upon them, like a multitude of aerial flames, appearing and disappearing almost with the rapidity of lightning, as they rise into the air or take refuge among the corn. The little creatures seem quite conscious of the admiration excited by their beauty, for they open and close their wings, turn themselves in every direction, and pour forth their pleasant song, as if fully appreciating the attention of a stranger.

THE FLAME-COLOURED FIRE FINCH.

The FLAME-COLOURED FIRE FINCH (_Euplectes ignicolor_) in the construction of its body closely resembles the Taha, from which, however, it differs entirely in the colour of its plumage. The coat of the male is extremely soft, and its whole surface, except the wing and tail feathers, of a bright black or fiery red. Except during the breeding season the male and female are alike dressed in a modest garb of brown, which is so completely changed when pairing time arrives as to differ not merely in colour, but in the softness and texture of the feathers; the wings and tail alone remaining unaltered. When clothed in all its glory the male bird is black upon the top of the head, the cheeks, breast, and belly; the other parts of the body being bright red; the wings exhibit a brownish shade, owing to the somewhat paler edges of the feathers. During this season the tail-covers become of such unusual length as almost to conceal the tail. The eye is brown, the beak black, and the feet brownish yellow. The body of the female is brown above, and of a yellowish shade beneath; a yellow line passes over the eyes, and the feet and beak are horn coloured.

The Fire Finch inhabits the whole country from the middle of Nubia to the interior of Central Africa, preferring such places as are in the vicinity of man, frequenting fields of corn, and only taking up its quarters in beds of grass or reeds when other accommodation is not attainable. A field of _durrah_ is a veritable Eden to these birds, who cause much injury to the natives, often completely destroying the crops, in spite of the many devices employed to scare them away; for these bold-hearted little thieves are not to be deterred from their work of destruction either by the dancing of dolls or rattling of clappers. The Fire Finch exhibits great activity; when amongst the corn it resembles a Reed Sparrow rather than a Finch in its movements, as it climbs up and down the stalks, or hides itself among the grass. When the period of incubation is over, and the harvests are gathered in, the fields that have afforded them food are deserted, and some time is then passed in flying about the country, after the manner of their congeners. This species of Weaver Bird can scarcely be said to form settlements, each couple building somewhat apart from the rest. The nest is constructed of stalks and blades of grass woven so loosely together that the little brood are often visible through the lattice-work of their cradle, which is either placed upon the ground in a bed of grass, or fastened to the higher stalks. Considerable difference is observable in the size and shape of these nests, some being long, some round; few, however, exceed seven or eight inches in length, and five or six in breadth. Our illustration represents the _Euplectes Petiti_, a very similar species to that just described, except that the whole of the lower part of the bird is black.

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The BUFFALO WEAVER BIRDS (_Textor_) constitute a group well deserving our notice, and are distinguished by their large size, thick, conical beak, which is unusually thick at its base, long, abruptly-rounded wings, and slightly rounded tail.

THE RED-BEAKED BUFFALO WEAVER BIRD.