The Brean Bird Screen was build to prevent disturbance to an important high tide waterbird roost on the Severn Estuary Site of Special Scientific Interest (SSSI), which is just beyond the screen. It is located at Brean Cross sluices, in Somerset, which were built in the 1970s at the tidal limit of the River Axe and which protect 15,000 acres of agricultural land as well as farms and residential properties.