The sword-billed hummingbird (Ensifera ensifera) is a neotropical species of hummingbird from the Andean regions of South America. It is the sole member of the genus Ensifera and is characterized by its unusually long bill; it is the only bird to have a beak longer than the rest of its body. E. ensifera uses its bill to drink nectar from flowers with long corollas and has coevolved with the species Passiflora mixta. While most hummingbirds preen using their bills, E. ensifera must use its feet to scratch and preen due to its bill being so long. This uncommon bird is also one of the largest hummingbird speciesTaken from: Wikipedia
