Maryland & DC Birds: A Folding Pocket Guide to Familiar Species (Nature Observation North America)

Birds of Maryland & Delaware Field Guide: Includes Washington, D.C. & Chesapeake Bay (Bird Identification Guides)

Mid-Atlantic Birds: Backyard Guide - Watching - Feeding - Landscaping - Nurturing - Virginia, West Virginia, Maryland, Delaware, New Jersey, Pennsylvania (Bird Watcher's Digest Backyard Guide)

Maryland & DC Trees & Wildflowers: A Folding Pocket Guide to Familiar Plants (Wildlife and Nature Identification)

Birds of the Eastern Chesapeake: Maryland & Delaware: A Guide to Common & Notable Species (Quick Reference Guides)

Virginia Birds: A Folding Pocket Guide to Familiar Species (Wildlife and Nature Identification)

National Audubon Society Field Guide to the Mid-Atlantic States: New York, Pennsylvania, New Jersey, Maryland, Delaware, West Virginia, Virginia (National Audubon Society Field Guides)

Birds of Maryland, Delaware, and the District of Columbia

60 Hikes Within 60 Miles: Washington, D.C.: Including Suburban and Outlying Areas of Maryland and Virginia