Here are the lyrics posted in the Irish 60's Songbook that ard mhacha referred to:

The Swallow (La Golondrina)

(Serradell/Richter)
Recorded by Brendan Bowyer & The Royal Showband
Lyrics submitted by Liam O'Reilly

To far off lands, the swallow now is speeding
For warmer climes and sun-drenched foreign shores
While cooler breezes tell of summer fading
My heart with you, into the heavens will soar.

Oh graceful swallow bear a message of love
For on your journey, lies the land of my heart
As down you sweep, shed my blessings upon them
That tell of love which in my heart still burns

Among those shores are all that I care or live for
My home, my loved ones, waiting for my return
Then glide downwards as you see from above
A sea swept isle from which we had to part

Each winter long console me in my dreaming
And you fond swallow on your gleaming wings
Will speed as I would wish I could go speeding
Straight to their hearts, and with you my love bring

Oh graceful swallow . . .
(repeat last line)