Three-striped Warbler
NameThree-striped Warbler
Common NameThree-striped Warbler
Scientific NameBasileuterus tristriatus
FamilyParulidae
Wingspan (cm)19
Length (cm)13
Weight (g)11
Plumage DetailsOlive-green upperparts and bright yellow underparts. The head features a black crown with a prominent white central stripe, bordered by black lateral crown stripes. A distinct white supercilium runs above a black eyestripe, with white cheeks.
Vocalization / CallA rapid, high-pitched song consisting of thin notes, often accelerating and descending, typically rendered as "tsee-tsee-tsee-tsee-tsu-tsu-tsu". Calls include a sharp "chip" or "tsip".
Primary Dietinsectivore
Primary Habitatsforest, mountain
Conservation Statusleast-concern
Geographic RangeFound in the Andes mountains from Venezuela south through Colombia, Ecuador, Peru, and Bolivia, with additional populations in Central America (Panama, Costa Rica).
Identifying Featuresblack and white striped head pattern, white central crown stripe, white supercilium, olive-green upperparts, yellow underparts, small size
Description
This small warbler is characterized by its olive-green upperparts and bright yellow underparts. Its most striking feature is the head, adorned with a complex pattern of black and white stripes. It actively forages for insects in the understory of humid montane forests.
