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Eutoxeres aquila (White-tipped Sicklebill) is a species of large sized hummingbird that is found from Costa Rica to West Ecuador and North Eastern Peru (Stiles & Skutch 1989, Hilty & Brown 1986, Ridgely & Greenfield 2001, Schulenberg et al. 2010). It has bronze, dark green upperparts with underparts that are white and heavily streaked with dusky. The rectrices are tipped with white. The species gets the name sicklebill from its distinctive sickle-shaped beak that has a curvature of nearly 90o (Stiles & Skutch 1989). The curved bill of this hummingbird allows it to feed on the curved flowers of Heliconia species and Centropogon granulous (Stiles & Skutch 1995). The IUCN has given this hummingbird the conservation status of Least Concern, as the population size is not believed to be approaching the threshold of Vulnerable (BirdLife International 2012).