Where the Susquehanna River pours into the upper Chesapeake Bay, Northern Maryland blends tidal flats, broad estuarine wetlands, and rolling Piedmont farmland into one of the state’s most productive year round birding regions. The Susquehanna corridor dominates the landscape, drawing massive winter concentrations of waterfowl, gulls, and raptors, especially the renowned gatherings of Bald Eagles at Conowingo. Expansive marshes and river shallows host shorebirds and waders during migration, while upland forests and wooded ravines fill with spring and fall songbird movement. Quiet inland ponds, hedgerows, and agricultural fields add sparrows, meadowlarks, and open country raptors. Defined by the juxtaposition of tidal waters and forested uplands, Northern Maryland offers birders easy access to consistently high diversity within a compact, well connected landscape.