Сине-чёрная танагра Tangara vassorii

This small tanager is found in the upper subtropical and temperate forest, higher than most other small Andean tanagers. Mostly blue with black wings, small black mask, and one blue wingbar. Could be confused with Masked Flowerpiercer but note black wings and more restricted black mask. Fairly common; usually found in pairs, often following a mixed species flock through the canopy.