Anserinae

Swans are birds of the genus Cygnus within the family Anatidae. The swans' closest relatives include geese and ducks. Swans are grouped with the closely related geese in the subfamily Anserinae, forming the tribe Cygnini. Sometimes, they are considered a distinct subfamily, Cygninae. They are the largest waterfowl and are often among the largest flighted birds in their range.

The Anserinae are a subfamily in the waterfowl family Anatidae and includes the swan and geese. Under alternative systematical concepts (see e.g., Terres & NAS, 1991), it is split into two subfamilies. The Anserinae contains geese and ducks, while the Cygninae contains the swans.

species of bird

species of bird