A Flea and a Fly in a Flue
A flea and a fly in a flue
Were imprisoned, so what could they do?
Said the fly, “let us flee!”
“Let us fly!” said the flea.
So they flew through a flaw in the flue.
— Ogden Nash
From Ogden Nash's Zoo
A collection of verses about animals from the barnyard to the aquarium and the haunts of the lion and rhinoceros also includes verses about mythical animals.