The story appears only in Greek sources in ancient times and may have been invented to explain the proverb 'One swallow does not make a spring' (μία γὰρ χελιδὼν ἔαρ οὐ ποιεῖ), which is recorded in Aristotle's Nicomachean Ethics (I.1098a18).[1] Other instances of where fables appear to derive from proverbs include The Mountain in Labour, recorded by Phaedrus, and Jumping from the frying pan into the fire by Laurentius Abstemius.