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Anseriformes (Anser being Latin for "goose") is the taxonomic order to which the ducks, geese, swans, and screamers belong. BirdLife International has assessed 166 species; 89 (54% of total species) have had their population estimated. A variety of methods are used for counting waterfowl.
Anseriformes is an order of birds also known as waterfowl that comprises about 180 living species of birds in three families: Anhimidae (three species of screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which includes over 170 species of waterfowl, among them the ducks, geese, and swans. Most modern species in the ...
Anseriformes is an order of birds belonging to the clade Galloanseres. It consists of 3 families, 58 genera and 171 living species. It consists of 3 families, 58 genera and 171 living species. [ 1 ] [ 2 ] Extinct species assignment follows the Mikko's Phylogeny Archive [ 3 ] and Paleofile.com websites. [ 4 ]
The magpie goose (Anseranas semipalmata) is the sole living representative species of the family Anseranatidae. This common waterbird is found in northern Australia and southern New Guinea. [2] As the species is prone to wandering, especially when not breeding, it is sometimes recorded outside its core range. [2]
Anser is a waterfowl genus that includes the grey geese and the white geese.It belongs to the true goose and swan subfamily of Anserinae under the family of Anatidae. [2] The genus has a Holarctic distribution, with at least one species breeding in any open, wet habitats in the subarctic and cool temperate regions of the Northern Hemisphere in summer.
The status as a species has been contested and a 2022 DNA study based on five specimens found no evidence of genetic isolation. It has sometimes been considered a subspecies of the bean goose but some have proposed, based on descriptions in life and specimens, that it was distinctive enough to be treated as a full species.
The order Anseriformes contains about 150 species of bird in three families: the Anhimidae (the screamers), Anseranatidae (the Magpie-goose), and the Anatidae, which includes over 140 species of waterfowl, among them the ducks, geese, and swans.
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. The related and extant families, Anhimidae ( screamers ) and Anatidae ( ducks , geese and swans ), contain all the other taxa.