NK - Beech or Birch

[Jerry Herring]

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 in 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. He replies:
"It is neither a son of a beech nor a son of a birch. That,
my friends, is the best piece of ash I have ever put my
pecker in."