Anseriformes

waterfowlanseriformwater birdsanseriformsAnatoideaanseriformersAnseriformes indet.aquatic birdsduckswaterfowls
Anseriformes is an order of birds that comprise about 180 living species in three families: Anhimidae (the 3 screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which includes over 170 species of waterfowl, among them the ducks, geese, and swans.wikipedia
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Duck

ducksducklingducklings
Anseriformes is an order of birds that comprise about 180 living species in three families: Anhimidae (the 3 screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which includes over 170 species of waterfowl, among them the ducks, geese, and swans.
Duck is the common name for numerous species in the waterfowl family Anatidae which also includes swans and geese.

Goose

geesegoslinggoslings
Anseriformes is an order of birds that comprise about 180 living species in three families: Anhimidae (the 3 screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which includes over 170 species of waterfowl, among them the ducks, geese, and swans.
A goose (plural geese) is a bird of any of several waterfowl species in the family Anatidae.

Galliformes

game birdgamebirdgalliform
Anseriformes are one of only two types of modern bird to be confirmed present during the Mesozoic alongside the other dinosaurs, and in fact were among the very few birds to survive their extinction, along with their cousins the galliformes.
"Wildfowl" or just "fowl" are also often used for the Galliformes, but usually these terms also refer to waterfowl (Anseriformes), and occasionally to other commonly hunted birds.

Fowl

GalloanseraeGalloanseresfowls
Together they belong to the Galloanserae.
Fowl are birds belonging to one of two biological orders, namely the gamefowl or landfowl (Galliformes) and the waterfowl (Anseriformes).

Anseranatidae

anseranatid
Anseriformes is an order of birds that comprise about 180 living species in three families: Anhimidae (the 3 screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which includes over 170 species of waterfowl, among them the ducks, geese, and swans. Studies of the mitochnodrial DNA suggest the existence of four branches – Anseranatidae, Dendrocygninae, Anserinae and Anatinae – with Dendrocygninae being a subfamily within the family Anatidae and Anseranatidae representing an
This family is placed in the order Anseriformes, having the characteristic bill structure, but is considered to be distinct from the other families in this taxon.

Bird

birdsAvesavian
Anseriformes is an order of birds that comprise about 180 living species in three families: Anhimidae (the 3 screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which includes over 170 species of waterfowl, among them the ducks, geese, and swans.
Males within Palaeognathae (with the exception of the kiwis), the Anseriformes (with the exception of screamers), and in rudimentary forms in Galliformes (but fully developed in Cracidae) possess a penis, which is never present in Neoaves.

Conflicto antarcticus

Conflicto
Conflicto antarcticus is a species of stem anseriform whose fossils were found in the early Paleocene López de Bertodano Formation of Antarctica, the only species of its genus.

Presbyornis

Presbyornis pervetus
Presbyornis is an extinct genus of anseriform bird.

Dromornithidae

mihirungdromornithiddromornithids
Several unusual extinct families of birds like the albatross-like pseudotooth birds and the giant flightless gastornithids and mihirungs have been found to be stem-anseriforms based on common features found in the skull region, beak physiology and pelvic region.
The latest idea on dromornithid relationships, based on details of the skull, is that they evolved early in the lineage that includes waterfowl (Anseriformes).

Anserinae

geeseanserineswan or wild goose
Studies of the mitochnodrial DNA suggest the existence of four branches – Anseranatidae, Dendrocygninae, Anserinae and Anatinae – with Dendrocygninae being a subfamily within the family Anatidae and Anseranatidae representing an
The Anserinae are a subfamily in the waterfowl family Anatidae.

Coscoroba swan

CoscorobaCoscoroba coscoroba
The coscoroba swan (Coscoroba coscoroba) is a species of waterfowl endemic to southern South America.

Presbyornithidae

presbyornithidextinct group of anseriformsPresbyornithidae indet.
Some members apparently surviving the KT extinction event, including presbyornithids, thought to be the common ancestors of ducks, geese, swans, and screamers, the last group once thought to be galliformes, but now genetically confirmed to be closely related to geese.
Initially, they were believed to present a mix of characters shown by waterbirds, shorebirds and flamingos and were used to argue for an evolutionary relationship between these groups, but they are now generally accepted to be waterfowl closely related to modern ducks, geese, and screamers.

Branta

black gooseblackbrant'' stocks
The black geese of the genus Branta are waterfowl belonging to the true geese and swans subfamily Anserinae.

Anser (bird)

Ansergrey goosegrey geese
The waterfowl genus Anser includes all grey geese (and sometimes the white geese).

Chen (genus)

Chenwhite goosecheno
The white geese are a small group of waterfowl which are united in the genus or subgenus Chen, in the true geese and swan subfamily Anserinae.

Blue-winged goose

CyanochenBlue-winged geeseCyanochen cyanoptera
The blue-winged goose (Cyanochen cyanoptera) is a waterfowl species which is endemic to Ethiopia.

Vegaviidae

Vegaviiformes
The genus Vegavis for a while was found to be the earliest member of the anseriform crown group but a recent 2017 paper has found it to be just outside the crown group in the family Vegaviidae.
They have found support of them making up a family of birds showing specializations to diving, classified as the sister taxon to crown Anseriformes.

Pelagornithidae

pseudotooth birdOdontopterygiformespelagornithid
Several unusual extinct families of birds like the albatross-like pseudotooth birds and the giant flightless gastornithids and mihirungs have been found to be stem-anseriforms based on common features found in the skull region, beak physiology and pelvic region.
If the pseudotooth birds are Galloanseres, phaeomelanins might be more likely to have occurred in their feathers, but it is notable that the most basal lineages of Anseriformes are typically grey-and-black or black-and-white.

Whistling duck

DendrocygnaDendrocygninaewhistling-duck
Studies of the mitochnodrial DNA suggest the existence of four branches – Anseranatidae, Dendrocygninae, Anserinae and Anatinae – with Dendrocygninae being a subfamily within the family Anatidae and Anseranatidae representing an
In 1837, William John Swainson named the genus Dendrocygna to distinguish whistling ducks from the other waterfowl.

Teviornis

Teviornis gobiensis
These were stilt-legged, Anseriform, waterfowl which are extinct, but which flourished during the Late Cretaceous and Paleogene.

Shelduck

Tadornasheldrakeshell duck
The shelducks, most species of which are found in the genus Tadorna (except for the Radjah shelduck, which is now found in its own monotypic genus Radjah), are a group of large birds in the Tadorninae subfamily of the Anatidae, the biological family that includes the ducks and most duck-like waterfowl such as the geese and swans.

Telmatornis

Telmatornis priscus
The reason for this is that the early anseriform Anatalavis rex was for some time included in Telmatornis.

Screamer

AnhimidaescreamersCrested screamer
Anseriformes is an order of birds that comprise about 180 living species in three families: Anhimidae (the 3 screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which includes over 170 species of waterfowl, among them the ducks, geese, and swans. Some members apparently surviving the KT extinction event, including presbyornithids, thought to be the common ancestors of ducks, geese, swans, and screamers, the last group once thought to be galliformes, but now genetically confirmed to be closely related to geese.
The young, like those of most Anseriformes, can run as soon as they are hatched.

Vegavis

Vegavis iaai
The genus Vegavis for a while was found to be the earliest member of the anseriform crown group but a recent 2017 paper has found it to be just outside the crown group in the family Vegaviidae. The earliest Cretaceous anseriform found so far is Vegavis, a goose-like waterfowl thought to have lived as long as 99 million years ago.
In 2017 a phylogenetic study Agnolín and colleagues have found Vegavis to be stem-anseriforms along with Polarornis, Neogaeornis and Australornis in the family Vegaviidae.

Pygmy goose

Nettapuspygmy geese
They are the smallest of all wildfowl.