Walk with Dot Williams, project officer at High Brown Fritillary project and longstanding volunteer, regularly organises public walks on Old Castle Down to raise awareness of this unique Common, the last habitat of the High Brown Fritillary in Wales. Guided public walk recorded on 8 September 2024 by Bettina Furnée, as part of her artist residency for Natur Am Byth with the High Brown Fritillary project, Vale of Glamorgan. Bettina interviewed volunteers, ecologists and commoners who maintain Old Castle Down as the last habitat of the High Brown Fritillary in Wales. These conversations are the artist’s source for the lyrics of Britheg Brown, a clarion call for the butterfly, set to music by Welsh composer Emma Daman Thomas. Local singers will perform the song for film on Old Castle Down in collaboration with St Brides Major Primary school choir, speakers and harpist.