Hinterland Whos Who The Canvasback Duck. Word Search Puzzle Solver. Hinterland Whos Who The Canvasback Duck word Search Puzzle Game. Find words related to movie actors, actresses, and genres. Word Search Puzzle Solver. This very short documentary from the Hinterland’s Who’s Who series is an introduction to the canvasback duck. This includes identifying and searching for words that are related to : John Livingston .