act-dog

In the sparse yet relatively green environment of the Kalahari Desert, birds known as sociable weavers build their enormous nests atop the desert’s signature camelthorn trees. Slung across the branches, each nest—which can measure up to thirteen feet wide and seven feet thick—is a sprawling community home to hundreds of birds. D as a whole. A weaver nest does not resemble a common bowl-like bird nest. Although the weavers use typical materials such as sticks, grass, and feathers to construct their nests, the nests look more like disorganized piles.³⁷ Built within each nest are as many as one hundred four-to-six-inch-wide chambers. A bird enters a chamber by flying to the underside of the nest, it squeezes³⁸ through a one-inch-wide entrance hole, and continuing up a passageway to a chamber. In each chamber, up to five of the sparrow-sized birds can huddle as a group together when the Kalahari nights get cold.³⁹ The multi-chamber construction of the weaver nest has drawn comparisons to that of an apartment building. Indeed, the nests exemplify communal living at there⁴⁰ most effective. Each one houses multiple generations of birds, all of whom work together to maintain their home.