Birds of North America - Puzzle Twist

Here's the Twist:
The puzzle ON the box is more than a bit different from the puzzle IN the box!  What happened here? 

About the Artist:
Mirka Hokkanen is a Finnish-American author, illustrator and printmaker, who creates nature centric art and household goods.  Inspired by retro and Scandinavian patterns and colors, her work is timeless and enjoyed by animal and bird lovers everywhere.  In Birds of North America, Mirka's illustrations of colorful backyard birds combined with a few unexpected sightings is sure to delight birders and puzzlers alike.