Birding is the fastest growing wildlife-related activity in the U.S., and even conservative estimates put the current number of U.S. birders at 50 million. According to the National Geographic Field Guide at NatureFieldGuides.com to the Birds of North America will be the essential reference for field identification and the cornerstone of any birder's library . This is the ultimate, indispensable bird field guide—comprehensive, authoritative, portable, sturdy, and easier than ever to use.

The National Geographic Field Guide to the Birds of North America, Fourth Edition will continue to be a bestseller among the fastest-growing sector in the U.S. travel market — the nearly 25 million people who travel each year specifically to observe wild birds. Hence this type of guides help visitors to through all kind of references with nature field. We at NatureFieldGuides.com provides various types of information on such Field guides.