There are currently 178 known species of the Order Anseriformes which includes waterfowl such as ducks, geese, and swans. I have photographed 40 (22.5%) of these species of birds, all of the Family Anatidae.
–Black-bellied Whistling-Duck (Dendrocygna autumnalis)
–Snow Goose (Anser caerulescens)
–Ross’s Goose (Anser rossii)
–Cackling Goose (Branta hutchinsii)
–Canada Goose (Branta canadensis)
–Mute Swan (Cygnus olor)
–Egyptian Goose (Alopochen aegyptiaca)
–Ruddy Shelduck (Tadorna ferruginea)
–Muscovy Duck (Cairina moschata)
–Wood Duck (Aix sponsa)
–Garganey (Spatula querquedula)
–Blue-winged Teal (Spatula discors)
–Cinnamon Teal (Spatula cyanoptera)
–Northern Shoveler (Spatula clypeata)
–Gadwall (Mareca strepera)
–American Wigeon (Mareca americana)
–Mallard (Anas platyrhynchos)
–American Black Duck (Anas rubripes)
–Mottled Duck (Anas fulvigula)
–Northern Pintail (Anas acuta)
–Green-winged Teal (Anas crecca)
–Canvasback (Aythya valisineria)
–Redhead (Aythya americana)
–Ring-necked Duck (Aythya collaris)
–Greater Scaup (Aythya marila)
–Lesser Scaup (Aythya affinis)
–Common Eider (Somateria mollissima)
–Surf Scoter (Melanitta perspicillata)
–White-winged Scoter (Melanitta deglandi)
–Black Scoter (Melanitta americana)
–Long-tailed Duck (Clangula hyemalis)
–Bufflehead (Bucephala albeola)
–Common Goldeneye (Bucephala clangula)
–Hooded Merganser (Lophodytes cucullatus)
–Red-breasted Merganser (Mergus serrator)
–Ruddy Duck (Oxyura jamaicensis)
–Andean Duck (Oxyura ferruginea)
–Andean Teal (Anas andium)
–Yellow-billed Pintail (Anas georgica)
–Tufted Duck (Aythya fuligula)