Ducks, Geese and Swans

Spur-winged Goose

Duck is the common name for numerous species in the waterfowl family Anatidae which also includes swans and geese. Ducks are divided among several subfamilies in the family Anatidae; they do not represent a monophyletic group (the group of all descendants of a single common ancestral species) but a form taxon, since swans and geese are not considered ducks. Ducks are mostly aquatic birds, mostly smaller than the swans and geese, and may be found in both fresh water and sea water.
There are around 125 different species of which I have photographed so far 55 different ones.

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Updated 14/03/2020

A goose (plural geese) is a bird of any of several waterfowl species in the family Anatidae. This group comprises the genera Anser (the grey geese), Branta (the black geese), and Chen (which includes the white geese); the latter being commonly placed within the genus Anser. Some other birds, mostly related to the shelducks, have "goose" as part of their names.

In this group I have photographed 14 different species

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Updated 16/12/2019

Swans are birds of the family Anatidae within the genus Cygnus. The swans' closest relatives include the geese and ducks. Swans are grouped with the closely related geese in the subfamily Anserinae where they form the tribe Cygnini. Sometimes, they are considered a distinct subfamily, Cygninae. There are six or seven living (and one extinct) species of swan in the genus Cygnus; in addition, there is another species known as the coscoroba swan, although this species is no longer considered one of the true swans.

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Updated 16/12/2019

Bird Families of the World