Listen to The Kingfisher: Glas Y Dorlan online. The Kingfisher: Glas Y Dorlan is a Welsh language song and is sung by Bryn Terfel and Alun Llwyd. The Kingfisher: Glas Y Dorlan, from the album A Song in my Heart, was released in the year 2007. The duration of the song is 2:32. Download Welsh songs online from JioSaavn.