Subfamily Anserinae, Tribe Cygnini (Swans) in the Animal Kingdom

Classification	Name	Notes
Kingdom	Animalia	Animals: Multicelular systems that feed by ingestion.
Subkingdom	Eumetazoa	Animals with bodies made of two or more symmetrical sides.
Branch	Bilateria	Body with two symmetrical opposing sides.
Phylum	Chordata	Chordates
Subphylum	Vertebrata	Vertebrates
Superclass	Gnathostomata	Vertebrates with jaws.
Class	Aves	Birds: Vertebrates with feathers.
Superorder	Neognathae	Birds of Flight
Order	Anseriformes	Waterfowl & Screamers
Family	Anatidae	Waterfowl
Subfamily	Anserinae	Swans & Geese
Tribe	Cygnini	Swans

Note: In some classifications we have seen the Swans assigned to their own subfamily, (Cygninae). We keep them in the subfamily (Anserinae) based on the List by the American Ornithologists' Union.

The Genus in the Tribe (Cygnini)

Two genera are recognized in the Tribe (Cygnini). Seven of the species are assigned to the genus (Cygnus), while the Coscoroba Swan is kept on the genus (Coscoroba) by itself.

Genus	Specie	Name
Cygnus	Cygnus columbianus bewickii	Bewick Swan
	Cygnus columbianus columbianus	Tundra Swan
	Cygnus buccinator	Trumpeter Swan
	Cygnus cygnus	Whooper Swan
	Cygnus melancoryphus	Black-necked Swan
	Cygnus atratus	Black Swan
	Cygnus olor	Mute Swan
Coscoroba	Coscoroba coscoroba	Coscoroba Swan

Mute Swan (Cygnus olor) in the Swans,

tirbe Cygnini, subfamily Anserinae

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Release: A.30

Last revision: February 1, 2007