Masked flowerpiercer
The masked flowerpiercer (Diglossa cyanea) is a species of bird in the tanager family, Thraupidae. It is found in humid montane forest and scrub in Venezuela, Colombia, Ecuador, Peru and Bolivia. Flowerpiercers got their name from the fact that they have a sharp hook on the tip of their upper mandible which they use to slice open the base of flowers to get at the nectar.
Taken from: Wikipedia.