Sorry, should have added the lyric you seek. From the Montgomeries - various editions. It is a small gem, a favourite of mine.
The Montgomeries give no tune, I have sung it to a trimmed version of The Roke and the Wee Pickle Tow.

There was a piper had a coo,
An he'd nae hey tae gie her.
He took his pipes, an played a tune,
Consider, auld coo, consider.

The coo considered vera weel,
Fir she gied the piper a penny,
That he micht play the tune again
O' Corn Rigs are Bonny.