I'm going to take the transcription from Threelegsoman (above) and the corrections from Mick Pearce and see if we can come up with a perfected version, such as it is. Be sure to pay attention to the Threlegsoman video, https://www.youtube.com/watch?v=YS-_C2Jq2GU.

THE COCK O' THE NORTH

Ah, as I gaed doon, by Glasgae Toon a lad I chance to see.
He wore a feather in his cap, and tartan on his knee.
A lassie walked there by his side and as the men gaed by,
The lassie looked at everyone and then I heard her cry.

CHORUS
Oh gie to me the lad you'll see from Ross-shire to the Forth,
The voice in lilt the swing of the kilt, man, that's the Cock O' the North.

There's your Irish Dan begorrah, and your English man, your Dovey bach from Wales
Your Spanish Joe, and your Frenchie beau, and other kinds of males
The lads they say from USA are very hard to beat,
And way Down Under you would wonder at the men you'll meet.

CHORUS Sae gie...

Now you'll see him down in London Town, you'll know him by his eyes.
They're proud and free and blue to see, as any highland skies.
As he swings along he sings a song that tells you where he's from.
To Scotland's Isles and bens and kyles he surely must belong.

CHORUS Sae gie...

Oh, the lads who come from Inverness, from Ross-shire or Kintyre,
Will meet a lass and soon we'll ha’e her bonnie heart on fire.
She'll loo the lad, she'd want him bad she even join his clan
She kens nae other lad could love her like a Highland man.

CHORUS Sae gie....
The handy sandy fine and dandy lad, The Cock O' the North, hee, the Cock O' the North.

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Any additional corrections? Sorry, but I don't buy "*Ross-shire* to the fourth."

Ross-shire: https://en.wikipedia.org/wiki/Ross-shire

Andy Stewart recording: https://www.youtube.com/watch?v=cztv_5kXja8