Swan

A swan is a large waterfowl in the family Anatidae, closely related to geese and ducks.

A swan is a large waterfowl in the family Anatidae, closely related to geese and ducks. Most true swans belong to the genus Cygnus, and they are among the largest flying birds and the largest extant members of the waterfowl family. Swans are known for their long necks, heavy bodies, and graceful swimming and flight.

Classification

Swans are birds in the family Anatidae, which also includes ducks and geese. Most true swans belong to the genus Cygnus and are grouped with geese in the subfamily Anserinae.

Physical characteristics

Swans are large, heavy-bodied birds with long flexible necks, webbed feet, and strong wings. They are known for swimming with a gliding motion and flying with slow wingbeats and outstretched necks. Many species are white, but some, including the black swan, are dark-plumaged.

Habitat and diet

Swans inhabit lakes, rivers, ponds, marshes, and other wetlands, as well as some coastal waters. They feed mainly on aquatic plants, though some species also eat small aquatic animals.

Species and variation

There are about six living true swan species in the genus Cygnus, including the mute swan, whooper swan, trumpeter swan, tundra swan, black swan, and black-necked swan. The coscoroba swan is sometimes treated separately from the true swans.