Marsh Antwren
NameMarsh Antwren
Common NameMarsh Antwren
Scientific NameStymphalornis acutirostris
FamilyThamnophilidae
Wingspan (cm)17
Length (cm)12
Weight (g)11
Plumage DetailsThe male Marsh Antwren has a dark grey to black head, throat, breast, and belly. Its back and rump are rufous-brown, contrasting with the darker underparts. The wings are dark with prominent white spots on the greater and median wing coverts, forming two distinct wing-bars. The tail is dark.
Vocalization / CallIts vocalization is typically a series of high-pitched, rapid 'tseep' or 'tsee-tsee-tsee' notes, which often accelerate and descend slightly in pitch.
Primary Dietinsectivore
Primary Habitatswetland
Conservation Statusvulnerable
Geographic RangeEndemic to a small area in southeastern Brazil, specifically found in the coastal lowlands of Paraná and Santa Catarina states.
Identifying FeaturesSmall size, Dark plumage with rufous-brown back (male), Prominent white spots on wing coverts (male), Secretive behavior in dense vegetation, Restricted to marsh habitats
Description
The Marsh Antwren is a small, secretive antbird endemic to southeastern Brazil, typically found in dense marsh vegetation. Males are characterized by their dark plumage, rufous-brown back, and distinctive white spots on the wing coverts. They forage for insects within the thick undergrowth.
