Weaver bird nests in Kabalega Falls National Park, east of Albert, Lake, Uganda

Weaver bird name for the Ploceidae, a family of Old World seed-eating birds closely resembling finches. The weavers are named for the highly complex woven nests built by many species, though others build only crude nests, and the parasitic widow weavers build no nests at all. Most weavers are sedentary, noisy, gregarious, and polygynous, with elaborate courtship rituals. The weaver group is divided into the buffalo, sparrow, typical, and widow weavers. The African buffalo weavers are black-and-brown birds 8 to 10 in. (20.3-25.4 cm) long, that travel in small flocks and build bulky compartmented nests with separate chambers for two or more pairs. Most specialized of the sparrow weavers is the social weaver of Africa, famous for its apartment-house nest, in which 100 to 300 pairs have separate flask-shaped chambers entered by tubes at the bottom. They build these structures, which may be 10 ft (3 m) high and 15 ft (4.5 m) across, high in a sturdy tree, beginning with a roof of straw thatch. Of the 100 or more African and Asian typical weavers, the small quelea, only 5 in. (12.7 cm) long, sometimes causes huge crop losses in Africa by feeding on grain in flocks numbering as many as one million birds. Weaver birds are classified in the phylum Chordata , subphylum Vertebrata, class Aves, order Passeriformes. This photograph was taken when Eliot Elisofon was on assignment for American Broadcasting Company and traveled to Africa from June 1966 to early August 1966.