The Cape Verde warbler (Acrocephalus brevipennis) is an Old World warbler in the genus Acrocephalus. It is also known as the Cape Verde cane warbler or Cape Verde swamp warbler, and in Creole as tchota-de-cana or chincherote (also tchintchirote). It breeds on Santiago, Fogo, and São Nicolau in the Cape Verde Islands. It previously bred on Brava. This species is found in well-vegetated valleys, avoiding drier areas. It nests in reedbeds, two to three eggs being laid in a suspended nest.
Description
thumb|left|200px|Clutch of A. brevipennis – [[MHNT]]
This is a medium-sized warbler, larger than the Eurasian reed warbler. It resembles that bird in appearance, grey-brown above, greyish-white below, with no obvious markings. The geographical isolation of the bird on the Cape Verde Islands prevents confusion with other similar species. The song is a distinctive liquid bubbling, like that of a bulbul. In 2004 a further population was discovered on Fogo island and further survey found it was widespread across the north of the island up to altitudes of about 1,300 m. Although previously thought to be mainly restricted to woodland and scrub, it is now reported from a wider range of habitats including well-vegetated valleys, reedbeds, cultivated land and around water sources such as dams. With its restricted range and relatively small population, this bird has been assessed by the International Union for Conservation of Nature as a vulnerable species.