When the little blue bird
Who has never said a word
Starts to sing Spring Spring
When the little blue bell
At the bottom of the dell
Starts to ring Ding Ding
When the little blue clerk
In the middle of his work
Starts a tune to the moon up above
It is nature, that is all
Simply telling us to fall in love

And that's why birds do it, bees do it
Even educated fleas do it
Let's do it, let's fall in love

In Spain, the best upper sets do it
Lithuanians and Letts do it
Let's do it, let's fall in love

The Dutch in old Amsterdam do it
Not to mention the Finns
Folks in Siam do it; think of Siamese twins

Some Argentines, without means, do it
People say in Boston even beans do it
Let's do it, let's fall in love

Romantic sponges, they say, do it
Oysters down in oyster bay do it
Let's do it, let's fall in love

Cold cape cod clams, 'gainst their wish, do it
Even lazy jellyfish do it
Let's do it, let's fall in love

Electric eels, I might add, do it
Though it shocks 'em, I know
Why ask if shad do it? Waiter, bring me shad roe

In shallow shoals, English soles do it
Goldfish in the privacy of bowls do it
Let's do it, let's fall in love