British wildlife recordings
Acrocephalus schoenobaenus : Sedge Warbler - Sylviidae
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Sedge Warbler, Acrocephalus schoenobaenus
The song of the male sedge warbler - a series of trills and warbles - is one of the most complex known to science. This small brown relatively inconspicuous looking bird sings a song composed of many different types of notes that are endlessly recombined so that no two sedge warbler songs are ever the same. This species is a spring migrant which arrives sometime around the beginning of April and is most likely to be seen in scrub habitat near to wetland areas such as lakes and marshes. Males typically arrive first to claim their territories; the females will arrive shortly after and visit a number of males before finally pairing with one of them. The male sedge warbler is unusual in that it dramatically decreases the amount of time it spends singing once it has paired with a female.