The common reed warbler or Eurasian reed-warbler (Acrocephalus scirpaceus) is an Old World warbler in the genus Acrocephalus. It breeds across Europe into the temperate western Palaearctic where it is migratory, wintering in sub-Saharan Africa. It is also a resident species over large parts of Africa.
This is a medium-sized warbler, 13 cm (5.1 in) in length with a wing-span of 17–21 cm (6.7–8.3 in). The adult has an unstreaked brown back and buff underparts. The forehead is flattened, and the bill is strong and pointed. The sexes are identical, as with most warblers, but young birds are richer buff below. The common reed warbler looks similar to the great reed warbler, but the great reed warbler is larger in size and has a stronger supercilium.
The song is a slow, chattering jit-jit-jit with typically acrocephaline whistles and mimicry added.
This small passerine bird is a species found almost exclusively in reed beds, usually with some bushes. They can also be found in damp scrub.
Like most warblers, it is insectivorous, but will occasionally take plant material such as berries.
