George Seto provided a link in 1999 to a Scottish Gaelic song with the same title. That link is still operative. You can also find lyrics and translations to Am Buachaille Bàn as recorded by various artists at the Celtic Lyrics Corner website.
For example http://www.celticlyricscorner.net/cliar/ambuachaille.htm

I hope some other day to give Am Buachaille Bàn a discussion thread of its own.