Swan Lake is a classic ballet composed by Pyotr Ilyich Tchaikovsky and choreographed by Marius Petipa and Lev Ivanov. It tells the story of a princess who is turned into a swan by an evil sorcerer. The
From Wikipedia
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.