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Overview
River warbler

River warbler

Wikipedia

The river warbler is an Old World warbler in the genus Locustella. It breeds in eastern and central Europe, and into the western Palearctic. It is migratory, wintering in inland southern Africa, from around the Zambezi River south to the vicinity of Pretoria in South Africa.

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Distribution

Region

Western Palearctic (breeding) and Southern Africa (wintering)

Typical Environment

Breeds from central and eastern Europe into parts of the western Palearctic, favoring damp thickets, willow–alder carr, overgrown riverbanks, and wet meadows with tall grasses and sedges. During migration it uses scrub, woodland edges, and dense undergrowth near water. In winter it occupies riparian thickets, rank grasslands, and miombo and similar wooded habitats in inland southern Africa. It avoids open areas, keeping close to dense herbaceous cover and low shrubs.

Altitude Range

Sea level to 1500 m

Climate Zone

Temperate

Characteristics

Size13–15 cm
Wing Span18–22 cm
Male Weight0.018 kg
Female Weight0.017 kg
Life Expectancy5 years

Ease of Keeping

Beginner friendly: 1/5

Useful to know

The river warbler is a secretive Locustella warbler best detected by its long, insect-like reeling song, often compared to a sewing machine. It breeds in dense, damp vegetation along rivers and wet meadows in central and eastern Europe, then migrates to inland southern Africa for the non-breeding season. Nests are placed low in thick cover, and the species rarely shows itself in the open. It is a long-distance migrant with a strong preference for ground-level foraging under heavy cover.

Gallery

Bird photo
Bird photo
Bird photo
Locustella fluviatilis - MHNT

Locustella fluviatilis - MHNT

Behaviour

Temperament

secretive and skulking

Flight Pattern

short rapid wingbeats, low and direct

Social Behavior

Generally solitary or in pairs during the breeding season, with males singing from concealed perches within dense cover. Nests are built low or on the ground in thick vegetation; the species is predominantly monogamous. Outside the breeding season it remains unobtrusive and may associate loosely with other small insectivores in dense habitats.

Migratory Pattern

Seasonal migrant

Song Description

A long, steady, insect-like reeling trill delivered for extended periods, often at dusk or dawn, reminiscent of a sewing machine. Calls are soft ticks and churrs given from cover.

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