Second Atlas of the Breeding Birds of Maryland and the District of ColumbiaFirst Place, Professional Reference Books, 25th Annual New York Book Show Despite their small sizes, Maryland and Washington, DC, possess a vast range of environmentsfrom the high peaks of the Allegheny Ridges to the low marshes of the Chesapeake Bay. Home to 200 nesting bird species, these habitats are under constant threat from urban sprawl, changing farming practices, and the degradation of coastal wetlands. The Second Atlas of the Breeding Birds