I spent about an hour today scanning the Potomac from the Piscataway Park boardwalk and found 13 species of waterfowl:
   
  Snow Goose (fly-over)
  Canada Goose
  American Wigeon
  Gadwall
  Mallard
  American Black Duck (single bird)
  Northern Shoveler
  Canvasback (2 male, 1 female)
  Ring-necked Duck
  Bufflehead
  Hooded Merganser (one pair)
  Red-breasted Merganser (single female)
  Ruddy Duck
   
  Other birds seen:
   
  Pied-billed Grebe
  Double-crested Cormorant
  Great Blue Heron
  Bald Eagle
  American Coot (single bird)
  Ring-billed Gull
  Belted Kingfisher
  Downy Woodpecker
  Cedar Waxwing
  Carolina Wren
  Carolina Chickadee
  Hermit Thrush
  American Crow
  Fish Crow
  White-throated Sparrow
  Song Sparrow
  Northern Cardinal
  Red-winged Blackbird
  American Goldfinch
   
  Scott Gruwell
  Waldorf, MD

       
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