Sedge Warbler
Acrocephalus schoenobaenus
The Sedge Warbler is a medium-sized warbler that can be seen in Britain during the summer months, typically in wetland areas with dense vegetation, and is a common migrant to the country. It is most often spotted from April to October, with peak breeding activity in May and June.
Field Identification Guide
Use these features to identify Sedge Warbler in the field.
The Sedge Warbler is distinguished by its streaked brown back and wings, pale supercilium, and distinctive head pattern, which sets it apart from other warbler species. Its overall appearance is also characterized by a rounded tail and a fairly long, pointed bill.
The Sedge Warbler is slightly smaller than a Starling, with a length of approximately 12-13 cm, making it a relatively medium-sized bird among its warbler counterparts.
The male Sedge Warbler has a brown back and wings with dark streaks, a pale underside, and a distinctive pale supercilium, with little to no seasonal variation in its plumage.
The female Sedge Warbler is similar to the male in terms of plumage, with the same brown and streaked pattern, although it may appear slightly duller in colour.
The Sedge Warbler's song is a series of random, chattering phrases that can include mimicry of other bird species, creating a unique and varied melody.
The Sedge Warbler is an insectivorous bird that feeds on a variety of insects and spiders, often foraging in dense vegetation and flying in a direct, purposeful manner.
The Sedge Warbler can be confused with the Reed Warbler, but can be distinguished by its pale supercilium and more streaked back, as well as its preference for wetland areas with denser vegetation.
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