Great spotted woodpecker

It uses its tongue to catch insects that live under the bark of trees.

An excerpt from the article 19 facts about Great spotted woodpecker
The woodpecker is equipped with a long and bristly tongue covered with sticky saliva. The bird can extend it up to 4 centimeters beyond its beak. This feature is due to the flexible hyoid bone to which the tongue is attached. When needed, the woodpecker is able to move the flexible horns of the hyoid bone forward to extend its reach.