A scarecrow's rhyme warning birds to take a little and leave the rest, paired with the ever-popular 'Mary, Mary, Quite Contrary' and her garden of silver bells. The bird-scarer verse is blunter than most modern rhymes about guarding crops.
From Mother Goose / Nursery Rhymes (traditional). See the whole collection.
Away, birds, away!
Take a little and leave a little,
And do not come again;
For if you do,
I will shoot you through,
And there will be an end of you.
MARY, MARY, QUITE CONTRARY
Mary, Mary, quite contrary,
How does your garden grow?
Silver bells and cockle-shells,
And pretty maids all of a row.
Public domain. Text from The Real Mother Goose (Blanche Fisher Wright, 1916), via Project Gutenberg. View the source edition