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Incredibly comprehensive yet portable enough for your day pack, the definitive field guide to every type of weather system, cloud formation, and atmospheric phenomenon common to North America--from the go-to reference source for over 18 million nature lovers. The 378 dramatic photographs in National Audubon Society Field Guide to Weather capture cloud types, precipitation, storms, twisters, and optical phenomena such as the Northern Lights. Essays with accompanying maps and illustrations discuss the earth''s atmosphere, weather systems, cloud formation, and development of tornadoes and many other weather events.

Virtually every bird found in western North America is brought to life in this portable guide, an essential companion in the field and a staple in any birdwatcher's library-a birding bible for more than four million enthusiasts!This bestselling field guide features a durable vinyl binding and brilliant full-color photographic identification pictures arranged for quick access and definitive text, including information on the bird's voice, nesting habits, habitat, range, and interesting behaviors. Accompanying range maps; overhead flight silhouettes; and sections on bird-watching, accidental species, and endangered birds make the National Audubon Society's Field Guide to North American Birds the most comprehensive available.Note: The Western Edition covers the Rocky Mountain range and all the states to the west of it, while the Eastern Edition generally covers states east of the Rocky Mountains.

The most comprehensive field guide available to the fabulous mysteries above--a must-have for any enthusiast's day pack or home library--from the go-to reference source for over 18 million nature lovers.The National Audubon Society Field Guide to the Night Sky provides a concise guided tour of the heavens, from planets in our solar system to the constellations in both the Northern and Southern hemispheres, stars, galaxies, astronomical bodies, phenomena, comets, and more. Featuring a durable vinyl binding, over 700 full-color photographs, sky charts, and constellation charts, as well as detailed descriptive text, this comprehensive, easy-to-use field guide is the perfect companion volume for any stargazer.