Autumn, I leaf you with a smile

Two Trees

It is hard to find a joke today without a dirty word or two in it,
but, here is one:

Two tall trees, a birch and a beech, are growing in the woods.
A small tree begins to grow between them, and 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.
He replies,

"It is neither a son of a beech nor a son of a birch. It is, however, the best piece of ash I have ever put my pecker in."