 The aim is to attract species including woodlark "Lullula arborea", European nightjar "Caprimulgus europaeus", and Dartford warbler "Sylvia undata".Sandy Warren, part of the reserve, is designated a Site of Special Scientific Interest.The site has two Iron Age hill forts, built about 700 BC; the more impressive, on Galley Hill, is a univallate fort, with obvious banks and ditches.