River Warbler

Locustella fluviatilis

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Brief #

Unstreaked grey-brown back, whitish grey underparts, and a darker undertail.

Synonyms #

  • Buscarla fluvial (Spanish)
  • Folosa fluvial (Galician)

Red List Status #

The River Warbler is unlikely to become extinct in the near future.
Find out more about IUCN's Red List program here

Description #

This is a largish warbler. The adult has an unstreaked grey-brown back, whitish grey underparts, and a darker undertail, which has white feather tips giving a contrasting pattern. The sexes are identical, as with most warblers, but young birds are yellower below. Some birds can show reduced dark markings on the undertail-coverts (caused by more extensive than usual white tips) and thus are closer in appearance to Savi's warbler than typical birds. However, they typically still have a streaked breast and more olive colouration on the upperparts.

Measurements #

Length: 13 - 13 cm
Wingspan: 19 - 22 cm
Weight: 15 - 19 g

Similar species #