Least Concern — wide range and fairly stable population.

16–17 cm in length; a large, bulky warbler with a strong, thick bill, long tail, and plain brown upperparts with buff underparts.

Migratory species; breeds in northeast Asia, eastern Russia, northern China, and Korea.

Winters in South and Southeast Asia, including much of India and Sri Lanka.

May to July in breeding range.

Nests low in dense reeds, bushes, or tall grasses; cup-shaped nest; clutch typically 4–6 eggs.

Found in reedbeds, tall grasslands, marsh edges, scrub, and overgrown wetlands; prefers dense cover.

Mainly insectivorous; feeds on beetles, caterpillars, grasshoppers, spiders, and other invertebrates, occasionally small fruits.