The Rio Madeira stipplethroat is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Bolivia, Brazil, and Peru. In the past it has also been called eastern stipple-throated antwren, Madeira stipple-throated antwren, Rio Madeira antwren, and Madeira antwren.
Region
Southwestern Amazon Basin
Typical Environment
Occurs in lowland evergreen forests of southwestern Amazonia across western Brazil (especially the Madeira River drainage), southeastern Peru, and northern Bolivia. It favors terra firme forests with a dense understory and is often associated with vine tangles, bamboo thickets, and patches of dead leaves. The species typically keeps to the lower to mid understory, moving deliberately through vegetation. It is generally absent from heavily flooded varzea but may use seasonally inundated edges where understory structure remains intact.
Altitude Range
100–700 m
Climate Zone
Tropical
Ease of Keeping
Beginner friendly: 1/5
Part of the stipplethroat (Epinecrophylla haematonota) complex, this taxon was elevated to full species status based on vocal and genetic differences. It forages methodically in the forest understory, often inspecting clusters of dead leaves for hidden arthropods. Pairs frequently join mixed-species flocks, where their high, thin calls help reveal their presence. Subtle plumage differences and voice are key to separating it from closely related stipplethroats.
Temperament
secretive and methodical
Flight Pattern
short rapid wingbeats
Social Behavior
Usually found in pairs or small family groups that often join mixed-species understory flocks. Pairs maintain territories year-round and communicate with soft, high calls. Nests are typically small, suspended or pensile cups in low vegetation; both parents participate in care.
Migratory Pattern
Resident
Song Description
Song is a high, thin, accelerating series of notes that may rise slightly in pitch before trailing off. Calls include sharp, dry chips and very fine seet notes, often given in contact within mixed flocks. Vocalizations are crucial for distinguishing it from similar stipplethroats.
