Swan
Swans, genus Cygnus, are birds of the family Anatidae, which also includes geese and ducks. Swans are grouped with the closely related geese in the subfamily Anserinae where they form the tribe Cygnini. Sometimes, they are considered a distinct subfamily, Cygninae. There are six or seven species of swan in the genus Cygnus; in addition there is another species known as the Coscoroba Swan, although this species is no longer considered one of the true swans. Swans usually mate for life, though 'divorce' does sometimes occur, particularly following nesting failure. The number of eggs in each clutch ranges from three to eight.
Read more about Swan: Etymology and Terminology, Description, Distribution and Movements, Behavior, Systematics and Evolution, Role in Culture
Famous quotes containing the word swan:
“But all is changed, that high horse riderless,
Though mounted in that saddle Homer rode
Where the swan drifts upon a darkening flood.”
—William Butler Yeats (1865–1939)
“Old age cannot be cured. An epoch or a civilization cannot be prevented from breathing its last. A natural process that happens to all flesh and all human manifestations cannot be arrested. You can only wring your hands and utter a beautiful swan song.”
—Renee Winegarten (b. 1922)
“When the swan must fix his eye
Upon a fading gleam,
Float out upon a long
Last reach of glittering stream
And there sing his last song.”
—William Butler Yeats (1865–1939)