The **Red-billed Buffalo Weaver** (*Bubalornis niger*) is a sociable and hardy bird found in the savannas and open woodlands of sub-Saharan Africa. Known for its striking red bill, black plumage, and white wings, it builds large, communal nests that are often seen in trees or shrubs. The nests are typically constructed in colonies, and are made of twigs, grasses, and leaves, creating large, bulky structures that can house multiple pairs of birds. These nests are often densely packed and can accommodate many individuals, providing a safe and sheltered environment for breeding. Red-billed Buffalo Weavers are highly social, and their nests are an important feature of their communal living.