HIS bill an auger is,
~emily dickinson
His head, a cap and frill.
He laboreth at every tree,—
A worm his utmost goal.

This is a perfect little jewel of a poem. Every line conveys something essential about a woodpecker–each one tells us exactly what Dickinson is describing, though she never comes out and says it.
Your prompt, for this spring day, is to spend a little time watching the feathered denizens of your little patch of Earth. Then choose one and write four lines that unmistakably describe that particular creature, without naming it. Happy writing!