River Warbler
River Warbler
River Warbler
River Warbler
River Warbler
River Warbler

River Warbler

Locustella fluviatilis

Song Robert Petersen

Mass

~15 g

Habitat

Wetlands and marshes

Diet

Insects and invertebrates

How to recognize it

Largish warbler, plain olive-brown upperparts
Whitish-grey underparts; dark blurry streaks on throat and breast
Dark broad tail with pale white-tipped undertail coverts
Song: long reeling, insect-like “zr-zr-zr”, like a grasshopper

The River Warbler is a shy, hard-to-see warbler that usually gives itself away by sound and movement rather than by looks. It slips through grass and low cover, staying low and hidden.

The male sings from a perch, then drops straight back into thick vegetation. Its song is a steady, insect-like reeling, most often heard at dusk or early morning, and sometimes even in darkness at the start of the breeding season.

It lives in dense, wet places near water, especially along rivers, in bogs, marshy meadows, and overgrown floodplain woods. It feeds on small insects, spiders, and other tiny animals, foraging on the ground, in grass, and in shrubs, and it migrates to inland southern and eastern Africa for the winter.

Sources