Backyard Birds Flash Cards, designed by the Cornell Lab of Ornithology, makes bird watching even more fun! This lavish boxed set focuses on the birds in eastern and central North America, helping you to maximize your chances of identifying species particular to your region, neighborhood, and backyard. The cards come with detailed information for 110 species, including useful range maps, photos of female birds when plumage differs, and QR codes (compatible with the free downloadable Bird QR app) that link to birdsong vocalizations. All identification information is organized by the following keys: size and shape, color pattern, behavior, and habitat. Based on vetted ornithological content from a trusted and leading authority, Backyard Birds Flash Cards is an exciting, handy tool for bird watchers of all ages. Identification information for 110 bird species in eastern and central North America QR codes that access birdsong samples Range maps Gorgeous photos of male and female species (if plumage is different)