Two tall trees, a birch and a beech, are growing in the woods. A
small tree begins to grow between them. The beech says to the
birch: "Is that a son of a beech or a son of a birch?" The birch says
he cannot tell. Just then a woodpecker lands on the sapling. The
birch says, "Woodpecker, you are a tree expert. Can you tell if that
is a son of a beech or a son of a birch?" The woodpecker takes a
taste of the small tree.