This new regional field guide offers in-depth coverage of every North American bird officially recorded east of the Rocky Mountains. The guide includes illustrated accounts of the different plumages and life stages for 619 eastern species, along with 560 new range maps. In addition, there are illustrated accounts for 85 Casual and Accidental birds, along with an appendix listing records for 70 Eastern rarities.This title features a Visual Index, printed on the inside front and back covers, which enables readers to access the content visually. This feature, unique to NGS, will be especially helpful to the beginning-and-intermediate birding audience. It also features: an extensively annotated art, which highlights the birds' key physical features, facilitating identification; identification tip boxes, which help with the most challenging identifications; thumbtabs, to help readers find information fast; 560 new range maps and 70 new art figures; and, durable cover and quick-reference flaps that double as placemarkers.