Hinterland Whos Who Herring Gull. Word Search Puzzle Solver. Hinterland Whos Who Herring Gull word Search Puzzle Game. Find words related to movie actors, actresses, and genres. Word Search Puzzle Solver. This very short documentary from the Hinterland Who’s Who series provides an introduction to the herring gull. This includes identifying and searching for words that are related to : John Livingston .