Sibley Backyard Flashcards

This new edition of David Allen Sibley's popular flashcard deck is a perfect knowledge builder and outdoor companion for birders from beginner to expert.  Incredible full-color paintings, vibrant range maps, and descriptive text are drawn from The Sibley Guide to Birds, Second Edition. The face of each card shows two images of the bird—either male/female, juvenile/adult, or summer/winter depending on the degree of differentiation, with key identifying characteristics called out.