Hone the identification skills of little birdwatchers-intraining—and test your own avian knowledge—with our Sibley Backyard Birds Matching Game. Northern cardinals, ruby-throated hummingbirds, belted kingfishers, killdeer, eastern bluebirds…twenty pairs of birds painted by renowned ornithologist David Allen Sibley grace these 2½"-square game pieces, perfectly sized for small hands. Simply spread the cards facedown on a flat surface and take turns searching for a match. Afterward, see if you can name the birds fluttering around your backyard feeder! For ages 4 and up.