Caspian Tern, Sterna caspia, aerial, beach, big, biggest, bird, birds, cliff, cliffs, close, close-up, closeup, coast, coastal, coastline, flight, flying, horizontal, landscape, large, largest, ocean, sand, sea, seabird, seabirds, seashore, shore, tern, terns, up, wide, world birds, worldwide, Paul Sterry