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Overview
Kilombero weaver

Kilombero weaver

Wikipedia

The Kilombero weaver is a species of bird in the family Ploceidae. It is endemic to Tanzania.

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Distribution

Region

East Africa

Typical Environment

Occurs almost exclusively in the seasonally inundated grasslands and wetlands of the Kilombero floodplain. It favors tall grasses, reedbeds, and papyrus stands adjacent to slow-moving channels and backwaters. Colonies are typically placed over open water or flooded grasses, which helps deter predators. Outside the breeding season it forages in surrounding wet grasslands and at the fringes of rice paddies.

Altitude Range

200–400 m

Climate Zone

Tropical

Characteristics

Size12–14 cm
Wing Span20–22 cm
Male Weight0.02 kg
Female Weight0.018 kg
Life Expectancy6 years

Ease of Keeping

Beginner friendly: 1/5

Useful to know

The Kilombero weaver is a little-known weaver discovered relatively recently and confined to Tanzania’s Kilombero floodplain. Males weave intricate, suspended nests over water and display in noisy colonies to attract females. Its specialized wetland habitat is threatened by conversion to agriculture, making conservation of the floodplain crucial. It is often seen near rice fields and seasonal swamps during the breeding season.

Behaviour

Temperament

social and active

Flight Pattern

short rapid wingbeats

Social Behavior

Highly colonial during breeding, with males constructing multiple woven nests suspended over water to entice females. Nests are often clustered in small groups on reeds or overhanging vegetation. Pairs are seasonally monogamous or polygynous depending on nest success and colony density.

Migratory Pattern

Resident

Song Description

A busy series of chatters, buzzes, and metallic notes delivered from reed perches near colonies. Males call persistently while displaying, interspersing harsh scolds with softer twittering.

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