Charley Harper (American, 1922–2007) Birducopia, 2000 Charley Harper’s posters for conservation organizations have become some of his most enjoyed works—skillful and playful menageries of local wildlife. Populated by ferns and fawns, salamanders and scarlet tanagers, Birducopia presents a multitude of creatures from Ohio’s Penitentiary Glen. Find them all in this creature-packed 1,000-piece puzzle.