This text comes from The Poetical Works of Robert Burns, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
One night as I did wander,
When corn begins to shoot,
I sat me down to ponder,
Upon an auld tree root:
Auld Ayre ran by before me,
And bicker'd to the seas;
A cushat crooded o'er me
That echoed through the braes.
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