Snow geese take flight over the Pungo Unit of the Pocosin Lakes National Wildlife Refuge in northeastern North Carolina in this photo by Sam Bland.
The refuge stretches through Hyde, Tyrrell, and Washington counties, covering 110,106 acres. The 12,350-acre Pungo Unit was established in the early 1960s to provide wintering habitat for waterfowl and other migratory birds. Large numbers of waterfowl concentrate on this relatively small area in the winter with peak numbers of more than 100,000 each winter. Species that winter on Pungo include tundra swan, snow goose and more than 20 species of ducks including wood duck, teal, mallard and pintail.