Green-fronted Lancebill

Overview

The green-fronted lancebill (Doryfera ludovicae) is a species of hummingbird in the family Trochilidae. Primarily known for its incredibly long bill and "glittering" green patch of feathers on its forehead, D. ludovicae is found in subtropical and tropical moist montane forest and prefers regions that include fast moving rivers and streams.

Summary from Wikipedia, available under CC BY-SA 4.0.