My mother's words for this were:

Auntie Mary had a canary
up the leg of her drawers.
And when it came doon
it whistled a toon,
it whistled The Cock o' the North.
The cock o' the north,
the cock o' the south,
the cock o' the east and the west.
Of all the wee cocks that I hae seen,
my ain wee cock's the best.