O sea-bird, beautiful upon the tides,
White as the moon is when the night abides,
Or snow untouched, whose dustless splendour glows
Bright as a sunbeam and whose white wing throws
A glove of challenge on the salt sea-flood.
Unlliw ag eiry neu wenlloer,
Dilwch yw dy degwch di,
Darn fel haul, dyrnfol, heli.
Original text (Portuguese)