Field Guide to the Birds of North America (National Geographic®)
Field Guide to the Birds of North America (National Geographic Society®)
This comprehensive guide is useful for identifying similar birds when there are visual differences among juveniles and adults, males and females, and dark and light phases. These variations are grouped together for easy comparison. For example, female hawks in flight can be a confusing mix — several full-page spreads show a variety of female hawks in flight. The convenient, compact 5” x 8” size makes this guide easy to carry into the field.