Lesser Swamp Warbler

Overview

The lesser swamp warbler, also known as the Cape reed warbler, is an Old World warbler in the genus Acrocephalus that is sparsely present across sub-Saharan Africa. It is a common species typically found in reedbeds standing in water.

Identification

• A plain-coloured, smallish bird measuring 14–16 cm in length and weighing around 20 g, with rich brown upperparts and white underparts.
• Features a white supercilium, a rufous wash to the flanks, blue-grey legs, and brown eyes.
• Possesses a long, strong, slightly down-curved bill that is blackish-yellow with a yellower base.
• The song is rich and melodious, consisting of a series of bubbly phrases including trilling notes such as 'cheerup chee trrreee' with variations and pauses.

Habitat

This species inhabits reedbeds in standing water and is distributed sparsely across sub-Saharan Africa. It has a large range with an estimated extent of 5,700,000 km², which contributes to its classification as a common species.

Diet

The lesser swamp warbler feeds on insects and other small invertebrates. It forages by moving through wetland reedbeds and clambering up and down reed stems, usually seen alone or in pairs.

Did you know?

The species is monogamous, pairing for life. It constructs a deep, firm cup nest from strips of reed blades, grass, and sedges that are always placed in reeds above water.