Acrocephalus dumetorum
The Blyth's Reed Warbler (Acrocephalus dumetorum) is a small, rather nondescript passerine, typically measuring 12.5-14 cm in length with a wingspan of 17-19 cm and weighing 8-13 grams. Its plumage features unstreaked olive-brown upperparts, contrasting with dull white or pale buff underparts, and is characterized by a prominent whitish supercilium and a dark eye-stripe. A key field mark for identification is its short primary projection, giving it a somewhat 'round-headed' appearance compare...
Primarily inhabiting dense, often thorny, scrub, willow and birch thickets, overgrown gardens, and areas with tall herbaceous vegetation, the Blyth's Reed Warbler thrives in lowlands, occasionally reaching subalpine elevations.
Blyth's Reed Warblers are insectivorous, primarily feeding on a variety of insects such as beetles, flies, caterpillars, and aphids, which they glean from foliage and stems, sometimes hawking them in the air.
Blyth's Reed Warblers are diurnal and generally skulking, preferring to remain hidden within dense vegetation, though males can be quite conspicuous when singing from exposed perches. Their foraging strategy involves gleaning insects, such as beetles, flies, caterpillars, and aphids, from leaves ...
The Blyth's Reed Warbler breeds across a vast Palearctic range, extending from eastern Finland, the Baltic states, and Belarus eastward through European Russia and across Siberia, Kazakhstan, and Mongolia, reaching northern China. Its primary wintering grounds encompass the Indian subcontinent, i...
Least Concern
- The Blyth's Reed Warbler is renowned for its complex and rapid song, which often includes impressive mimicry of other bird species, making it a challenge for even experienced birders to identify by voice alone sometimes. - Despite its small size, it undertakes an arduous annual migration coveri...