Woodpecker Finch
woodpecker finch:http://www.wl.k12.in.us/hs/depts/sci/index.html

Woodpecker finch using a cactus spine to extract insect larvae from a branch. Having finch rather than woodpecker ancestors, it did not inherit a long woodpecker tongue but learned to substitute a cactus spine as a tool to obtain its food.
Excerpted from: Speciation