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.
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 JAVA WEAVER BIRD (BAYA), AND NESTS.