Rare hummingbird endemic to Colombia’s Santa Marta Mountains. Male is green with a blue throat, and female is green above and mostly white below. Both sexes have a white spot behind the eye and lack copper in the tail. Male could be confused with male Lazuline Sabrewing or Black-throated Mango, whose coppery tails are not always evident. Female is similar to female White-vented Plumeleteer, but has a more conspicuous eye spot and less white on the tail tip. Poorly known and rarely seen in the areas typically visited by birders.