Sword-billed hummingbirds are found perched on the mid to upper level branches of neotropical trees. Its length ranges 13 to 14 cm from the tail tip to the base of the bill, with males slightly larger on average than females. The bill can additionally be over 10 cm long. Individuals weigh between 10-15 g making it one of the largest species of hummingbirds. As is characteristic of hummingbirds, E. ensifera is able to fly backwards and hover in the air. It also exhibits higher than average wing-disc loading than other members of its family. E. ensifera displays sexual dimorphism where plumage varies between males and females. Males have a coppery bronze head, bronze green back, bright green underbelly, blackish green throat, and bronze green tail. Females have a similarly colored head and back, a white belly speckled with green, a more olive colored throat, and grayish white edging around the tail. Learn more about Sword-Billed Hummingbird