Carricerín manchú Acrocephalus tangorum

Small, shy, and poorly understood, this reed warbler breeds in the remote marshlands of northeastern China and Russia and winters in drier, grassier habitats in Southeast Asia. Warm brown overall with a clean-cut whitish brow and throat; brow extends well behind the eye, unlike in Blunt-winged Warbler. Very similar to extralimital Paddyfield Warbler, but Paddyfield shows dark-tipped lower mandible, duller brown tones overall, and a dirtier brow stripe with a distinctive pinch just before the eye, after which it fades out; Manchurian’s brow broadens behind the eye instead. Oriental Reed Warbler much larger, with a weaker head pattern. Rambling jumbled song consists of high-pitched warbling notes and sharp clicks and rattles; more pleasant-sounding than that of Oriental Reed Warbler.