TY - BOOK AU - Alderfer,Jonathan K. AU - Dunn,Jon L. ED - National Geographic Society (U.S.) TI - National Geographic field guide to the birds of North America SN - 0792253140 PY - 2006/// CY - Washington, D.C. PB - National Geographic KW - Birds KW - North America KW - Identification N1 - Includes index ER -