National Geographic field guide to birds.
By: edited by Jonathan Alderfer.
Contributors: Alderfer, Jonathan K.; National Geographic Society (U.S.)
Publisher: National Geographic
Published: 2006
Place of publication: Washington, D.C
Language: eng
Number of pages: 271
Subjects: Birds -- Maryland -- Identification.; Birds -- Washington (D.C.) -- Identification.
Genres: Identification.
Other titles: Field guide to birds; Birds
Notes: Includes index.