The Slaty Flowerpiercers (Diglossa plumbea) – also known as Slaty Honeycreepers – occur naturally in Central America, where they are relatively common in mountain forests, in particularly in areas with flowering shrubs.

These birds were named for their habit of piercing the base of flowers to retrieve the nectar therein. Their upturned bills with hooked upper mandibles and brush-like tongues are particularly well adapted for this task.

https://beautyofbirds.com/slaty-flowerpiercers/