Identification
This attractive warbler is nearly endemic to the Bolivian Andes, barely reaching over the border into Peru. Note the ornate head pattern and olive (not yellow) plumage. Most similar to Riverbank Warbler and the white bellied form of Golden-crowned Warbler, but has a dark loop below the eye and is found at higher elevations. Usually seen in pairs at lower to middle levels of cloud forest. Song is a rising series of piping notes followed by a chatter. Formerly considered a subspecies group of Three-striped Warbler.