Clamorous Reed Warbler

Acrocephalus stentoreus

Reed Warblers and Allies · Passeriformes · Uncommon

The Clamorous Reed Warbler (Acrocephalus stentoreus) is a uncommon reed warbler found in 30 countries, weighing about 24 g. The clamorous reed warbler is an Old World warbler in the genus Acrocephalus.

Least ConcernUncommonEats invertebrateswetlandcup nest24 g

About the Clamorous Reed Warbler

The clamorous reed warbler is an Old World warbler in the genus Acrocephalus. It breeds from Egypt eastwards through Pakistan, Afghanistan and northernmost India to south China and southeast Asia. A. s. meridionalis is an endemic race in Sri Lanka.

Text adapted from Wikipedia, licensed CC BY-SA 4.0.

How to identify it

Clamorous reed warbler is a large song thrush-sized warbler at 18–20 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. It is very like the great reed warbler, but that species has richer coloured underparts. There are a number of races differing in plumage shades. The migratory northern race has the richest brown upperparts, and the endemic Sri Lanka subspecies is the darkest form.

What the Clamorous Reed Warbler sounds like

Recording: Premchand Reghuvaran · CC BY 4.0 · via xeno-canto
Recording: Sudipto Roy · CC BY-SA 3.0 · via xeno-canto

Where it lives

When to see it

Best months: January, February, March, April, May, September, October, November, December, with peak activity in January. It is a winter visitor species across most of its range.

Easily confused with

Quick questions

How do you identify a Clamorous Reed Warbler?
Clamorous reed warbler is a large song thrush-sized warbler at 18–20 cm. Full identification notes are on this page.
How big is a Clamorous Reed Warbler?
The Clamorous Reed Warbler is a small sized bird weighing about 24 g.
Where can you see a Clamorous Reed Warbler?
The Clamorous Reed Warbler occurs in 30 countries, including India, Israel, the United Arab Emirates, Australia and the Philippines.
What does a Clamorous Reed Warbler sound like?
You can listen to 2 field recordings of the Clamorous Reed Warbler on this page, contributed to xeno-canto under open licences.
What birds look similar to a Clamorous Reed Warbler?
The Clamorous Reed Warbler is most easily confused with the Lesser Swamp Warbler, the Australian Reed Warbler and the Oriental Reed Warbler.
Is the Clamorous Reed Warbler endangered?
The Clamorous Reed Warbler is listed as Least Concern on the IUCN Red List.

Learn the Clamorous Reed Warbler for real

BeakBrain drills you on photos and calls until you can greet this bird by name in the field. Free to play, on any device.

Play BeakBrain

Every photo and recording on this page is credited to its author under the licence shown. Spotted a problem with this page, or have a better photo? Contribute.