One of our nearest colonies is at RSPB North Warren reserve, between Aldeburgh and Leiston in Suffolk. The greatest concentration of Graylings on this site is along the public footpath alongside North Warren reserve. It is an area of very free-draining sandy heathland.
The Grayling has only one brood per year. The larval food plants are various fine-leaved grasses, and it over-winters as larvae. The adults are on the wing in July and August.