Swans are birds of the genus Cygnus within the family Anatidae. The swans' closest relatives include the 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.
Swan
An adult mute swan (Cygnus olor) with cygnets in Vrelo Bosne, Sarajevo, Bosnia and Herzegovina
A mute swan landing on water. Due to the size and weight of most swans, large areas of open land or water are required to successfully take off and land.
Whooper swans migrate from Iceland, Greenland, Scandinavia, and northern Russia to Europe, Central Asia, China, and Japan
The Anatidae are the biological family of water birds that includes ducks, geese, and swans. The family has a cosmopolitan distribution, occurring on all the world's continents except Antarctica. These birds are adapted for swimming, floating on the water surface, and in some cases diving in at least shallow water. The family contains around 174 species in 43 genera.
Anatidae
Landing mallard drake
Anatidae: Eurasian teal (Anas crecca), gadwall (Anas strepera), northern pintail (Anas acuta), mallard (Anas platyrhynchos), greater scaup (Aythya marila), long-tailed duck (Clangula hyemalis), northern shoveler (Anas clypeata), garganey (Anas querquedula), Eurasian wigeon (Anas penelope), ferruginous duck (Aythya nyroca), common goldeneye (Bucephala clangula), common merganser (Mergus merganser), smew (Mergellus albellus), tufted duck (Aythya fuligula),
Mute swan