Sociable weaver birds live in Africa's Kalahari Desert, where they build their huge nests on sparse trees and telephone poles. These nests can be more than 6 meters long and weigh more than 900 kilograms. When they become too big or waterlogged, they can cause the tree beneath them to collapse. Some nests are even more than a century old, with generations of weaver birds occupying the individual chambers.
Key Facts In This Video
Sociable weavers build gigantic, communal nests that can be six meters across with up to 100 nesting chambers. 00:36
Oropendolas build their hanging nests near hornets and wasps to keep predators away. 02:07
Some species of bower bird paint the walls of their bower with crushed berries or charcoal. 02:52
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