The red-billed buffalo weaver (Bubalornis niger) is a species of bird in the family Ploceidae.

The female's body is also colored dark chocolate brown, without the white flecks on the wings.

[4] The diet of the red billed buffalo weaver consists primarily of insects, seed and fruit.

Particular insects the bird feeds on include crickets, locusts, grasshoppers, caterpillars, beetles, weevils, wasps, bees, ants, flies, and spiders.

[6] In fact, if people living in community with a population of red-billed buffalo weavers leave, the birds often depart as well.

[5] Additionally, overpopulation does not tend to be a problem for the red-billed buffalo weaver seeing as they live in colonies.

The red-billed buffalo weaver has been observed in small family groups or in large flocks.

These males will defend their chambers and females by showing aggressive displays and giving loud calls.

However, two males sometimes cooperate with each other to build the nest, defend their territory, and help feed the chicks.

Each chamber has a smaller nest, typically built by the female (unless they are part of a cooperative breeding colony).

[9] Egg laying season can last from September to June, with the peak occurring between December and March.