These North American Bird Trading Cards make a fun supplement to a U.S state birds, Canadian birds, or life science unit. The 40 birds included in this set are the: American Goldfinch, Atlantic Puffin, Bald Eagle, Baltimore Oriole, Blue Jay, Blue Hen Chicken, Brown Thrasher, Cactus Wren, California Quail, Cardinal, Chickadee, Common Gull, Common Raven, Eastern Bluebird, Eastern Brown Pelican, Great Carolina Wren, Great Gray Owl, Great Horned Owl, Gyrfalcon, Hermit Thrush, Lark Bunting, Loon, Mo