An entirely updated edition of the classic bestselling regional bird field guide from National Geographic, covering the U.S. and Canada east of the Rockies. Provides ID information, data-driven maps, and annotated illustrations of more than 800 bird species. Backyard beginners and dedicated life-listers alike will love the expanded new edition of this trusted guide to the birds of eastern United States and Canada. With new text, revised art, and data-derived range maps, this valuable resource complements the apps and online resources used by birders today. Groundbreaking new features join tried-and-true traditions. This field guide offers: More pages, more species than the first edition More than 800 species , including 586 likely to be observed and 240 that occur more rarely Organized according to current taxonomy Informative notes explaining evolution, etymology, and more User-friendly format with explanatory text on the left and matching annotated art on the right Easy-to-carry paperback with thumb tabs and a visual index All-new maps based on crowd-sourced data from the Cornell Lab of Ornithology's eBird , the world's top database of bird observations All told, this second edition of the National Geographic Field Guide to the Birds of the United States and Canada—East (2nd edition) is a must-have guide for birders young and old, avid and beginner.