Never Underestimate the Intelligence of Birds

Woodpecker finches in the Galapagos Islands that trim sticks and twigs to the proper length for use as tools to forage for insects. Green herons and other heron species that use bread fed to ducks, picnic leftovers, or even small leaves as bait to attract fish for their hunting. Blue tits in the 1920s that learned which color of milk caps on delivered milk had the most cream (whole milk) and pierced those caps to drink the cream.