Bruce M. Beehler Ornithologist Bruce M. Beehler is a research associate in the Division of Birds at the National Museum of Natural History, Smithsonian Institution, and a scientific affiliate of the American Bird Conservancy. He is the author of more than a doen nature books, including Birds of Maryland, Delaware, and the District of Columbia and North on the Wing: Travels with the Songbird Migration of Spring. Read More Read Less