Just passin this along

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, but 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, 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 poked my pecker
into.'