Then off he sped himself with the speed of a darting hawk
that soaring up from a sheer rock face, hovering high,
swoops at the plain to harry larks and swallows –
so the lord of the earthquake sped away from both.

– Homer

The Iliad, Book 13, lines 77-80. Poseidon leaves Great Ajax and Little Ajax on the battlefield, having given them both a pep talk, and takes off like a speeding hawk, as described in an epic simile.