Mute swan

Mute swan
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Anseriformes
Family: Anatidae
Genus: Cygnus
Species:
C. olor
Binomial name
Cygnus olor
(Gmelin, JF, 1789)
Distribution map of mute swan
  Summer breeding range
  Year-round breeding range
  Winter non-breeding range
  Non-native range (partial)
Synonyms
  • Anas olor Gmelin, 1789
  • Sthenelides olor (Gmelin, 1789)
  • Cygnus immutabilis Yarrell, 1838

The mute swan (Cygnus olor) is a species of swan and a member of the waterfowl family Anatidae. It is native to much of Eurasia, and (as a rare winter visitor) the far north of Africa. It is an introduced species in North America, home to the largest populations outside of its native range, with additional smaller introductions in Australasia and southern Africa. The name "mute" derives from it being less vocal than other swan species. Measuring 125 to 160 cm (49 to 63 in) in length, this large swan is wholly white in plumage with an orange beak bordered with black. It is recognisable by its pronounced knob atop the beak, which is larger in males.