Interview with Sue Johnson, chair of the Ogmore Commoners Association in succession to her husband, has lived in the historic Cobbler’s Cottage adjacent to Old Castle Down for twenty-five years. She speaks about the use of the Common by the community and local farmers for grazing, and the role of the Commoners Association in working with volunteers and staff at the High Brown Fritillary project to preserve Old Castle Down both as sheep pasture and as Site of Scientific Interest (SSI). Interview held on 9 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.