Common social weaver (Philaeterus socius) is a modestly colored bird. In the male, the upper side of the body is gray-brown, the throat is black, the underside is pale sandy-brown. This species got its name because it lives in numerous colonies throughout the year.
By Thomas Schoch - own work at http://www.retas.de/thomas/travel/namibia2003/index.html, CC BY-SA 3.0, https://commons.wikimedia.org/ w / index.php? curid = 716060
The common social weaver is remarkable for its large colonial nesting grounds. The latter are a huge heap of grass, thrown on the branches of a thorny tree in the form of a huge umbrella.
From above, this edifice is even and smooth, its lower side is almost flat and the whole is drilled with numerous holes leading into the cavity. These cavities serve not only as individual nests, but also as shelters from rain and wind. The nesting cavities are lined with feathers. Eggs are gray in color with dense lilac-gray streaks.
The social weaver's nests serve for several years and are constantly being repaired by their small inhabitants. The peculiar roof-like structures of the weavers from a distance are very reminiscent of the huts of the natives.
The described species feeds mainly on the seeds of herbaceous plants. It feeds in flocks both in winter and in summer.
On the island of Java and in other parts of Asia, there is a fig, or Javanese sparrow (Munia oryzivora). This type of weaver has a strongly swollen beak and an elongated pair of middle tail feathers. In the male, the upper side of the head, uppertail and tail are black, the cheeks are pure white, the rest of the plumage is of a uniform steel-gray color. By the nature of its nutrition, the rice is a grain-eating bird, and in its homeland it causes great harm to rice fields. As a cage bird, drawing was brought to Europe in ancient times.
Source: Animal Life. Birds, edited by Professors N.A. Gladkov, A.V. Mikheev. Volume 5