Audubon Winter Cardinal 500 Piece Puzzle: This species is a favorite of many. Common in the eastern half of the United States, more states have adopted the Northern Cardinal as their state bird than any other. Sturdy and adaptable, these birds remain in their territory throughout the winter, even in harsh northern climates. This 500-piece jigsaw puzzle measures 18" x 18" when complete. For ages 13 and up. UPC: 079346003693