Mavi-Yeşil Öfonya Euphonia chalybea

Tiny bird with a strong thick bill and a short tail. Males are mostly glossy dark greenish-blue with a yellow band on the forehead and are entirely yellow below. Females are olive-green above with gray sides to the head and on the center of the breast and belly with yellow flanks. Inhabits the canopy of humid forests and forests edges; often accompanying mixed-species flocks. The song is a fast series of squeaky notes.