The clamorous reed warbler breeds from Egypt eastwards through Pakistan, Afghanistan and northernmost India to south China, southeast Asia and south to Australia.
Most populations are sedentary, but the breeding birds in Pakistan, Afghanistan and north India are migratory, wintering in peninsular India and Sri Lanka. This bird is a species found in large reed beds, often with some bushes. 3-6 eggs are laid in a basket nest in reeds.Clamorous reed warbler is a large song thrush-sized warbler at 20 cm. The adult has an unstreaked brown back and whitish underparts. The forehead is flattened, and the bill is strong and pointed. The sexes are identical, as with most warblers.