This album contains 'Waterfowl', a general term for ducks, swans and geese, which are all birds of the order Anseriformes. See Complete List. I was suprised to see there are only 168 species, but not suprised to see many are endangered.
Album: Ducks
Album: Geese
Album: Screamers
Album: Swans
Album: Whistling Ducks
