Natural Encounters: Biking, Hiking, and Birding Through the Seasons
Beehler, Bruce M. ; With Illustrations by John C. Anderton
Birds of Maryland, Delaware, and the District of Columbia
Beehler, Bruce M., photography by Middleton Evans
Birds of Maryland and the District of Columbia
Stewart, Robert E. and Chandler S. Robbins
Field Guide to the Natural World of Washington, D.C.
Finding Birds in the National Capital Area
Checklist of Birds of the Mid-Atlantic Area
STOTT, William R. Jr.; Fleming, Gregory W.