Northern gannet (Morus bassanus) colony, Hermaness, Shetland Isles, Scotland, July 2007  ,  bassana, BIRDS, CLIFFS, COASTS, Danny-Green, EUROPE, GANNETS, GROUPS, ROCKS, SEABIRDS, UK, VERTEBRATES, VERTICAL, WWE,Geology,United Kingdom  ,  Wild Wonders of Europe / Green