common tern courtship display

term terns seabird seabirds seagull seagulls courtship display displays displaying pair pairs female females mate mates mating breed breeds breeding species sterna hirundo laridae water waters waterway waterways sea seas scrape scrapes coast coasts coastal seashore seashores waterline waterlines shoreline shorelines seaside seasides animal animals bird birds wildlife nature natures natural beak beaks wing wings feather feathers plumage plumages