Yellow-backed Tanager Hemithraupis flavicollis

Small warblerlike tanager. Male is distinctive: mostly black above with yellow patch on back, yellow throat and undertail coverts, and dingy whitish belly. Female is less striking: overall yellowish with grayer flanks, yellow edging on wing feathers, and orange lower bill (sometimes dull). Widespread from eastern Panama to southeast Brazil. Typically seen in pairs foraging in the canopy of lowland forest, often following a mixed-species flock.