This text comes from The Poetical Works of Robert Burns, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
Chorus
Bonie lassie, will ye go, will ye go, will ye go,
Bonie lassie, will ye go to the Birks of Aberfeldy?
Now simmer blinks on flowery braes,
And o'er the crystal streamlet plays,
Come let us spend the lightsome days
In the Birks of Aberfeldy.
Bonie lassie, &c.
While o'er their heads the hazels hing,
The little birdies blithly sing,
Or lightly flit on wanton wing
In the Birks of Aberfeldy.
Bonie lassie, &c.
The braes ascend like lofty wa's,
The foaming stream deep roaring fa's,
O'erhung wi' fragrant spreading shaws,
The Birks of Aberfeldy.
Bonie lassie, &c.
The hoary cliffs are crown'd wi' flowers,
White o'er the linns the burnie pours,
And rising, weets wi' misty showers
The Birks of Aberfeldy.
Bonie lassie, &c.
Let Fortune's gifts at random flee,
They ne'er shall draw a wish frae me,
Supremely blest wi' love and thee,
In the Birks of Aberfeldy.
Bonie lassie, &c.