Aerial orbit shot over a group of swans floating on wetlands in Santona natural reverse, Spain

aerial view orbiting shot swans flock wetland marshes spain marismas de santona low tide estuary bird watching ecosystem biosphere cygnus cygnus sanctuary coastline idyllic habitat environment nature natural river protected area scenery santona tide birdwatching plumage reserve peaceful outdoors ornithology marsh marshland natural park wilderness vegetation scene swamp seashore animals elegance tranquil white swan ecology poultry feather swans wildlife