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lesser swamp warbler
The lesser swamp warbler or Cape reed warbler (''Acrocephalus gracilirostris'') is an Old World warbler in the genus ''Acrocephalus''. It is a resident breeder in Africa from the Democratic Republic of the Congo, the Chad and Ethiopia south to South Africa. This is a common species of reedbeds in standing water.
==Description==
The lesser swamp warbler is a plain coloured smallish bird 14–16 cm long and weighing around 20 gm. Its upperparts are rich brown, and it has a white supercilium. The underparts are white, with a rufous wash to the flanks. The long, strong bill has a slightly down-curved upper mandible; it is blackish-yellow with a yellower base. The legs are blue-grey and the eyes are brown. Adults of both sexes and juvenile birds are very similar in appearance.
The song is rich and melodious, a series of bubbly phrases that include trilling notes, ''cheerup chee trrreee'' and a large number of variations, with pauses between phrases.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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