Geese are in accordance with the ornithological classification of the Order of ducks, Anseriformes. Within the ducks they are a family of ducks, Anatidae, assign. In the sub-family of geese, anserina, includes the group or tribe of the True geese Anserini, 16 species and can be divided into the two kinds of sea geese (Branta) and field geese (Anser) divide. Field of sea geese geese can be easily distinguished from its looks. During field geese beaks and feet in the colors pink, orange and gray have, they are at the sea geese always black in color.
Sea geese come in six types, as a field goose, the remaining ten representatives of the genuine goose called. In addition, includes the tribe of swans, Cygnini, the sub-family of geese. As Real Geese (Anser Anser) in Europe, the gray goose, bean goose (Anser fabalis), the Bar-headed Goose (Anser indicus), white-fronted goose (Anser albifrons), the pink-footed goose (Anser brachyrhynchus) and the dwarf or Zwergblässgans (Anser erythropus) in a field of geese. Four of the six geese have a sea Verbeitungsgebiet in Europe. These include the Canada goose (Branta canadensis), the white-cheeked or barnacle goose (Branta leucopsis), the barnacle goose (Branta bernicla) and the Red-chested goose (Branta ruficollis). As for the tribes of the Swans, have Mute Swan (Cygnus olor) and whooper swan (Cygnus cygnus), each an original distribution area in Europe. Furthermore, the Bewick's Swan (Cygnus bewickii) a non Unselt Irrgast. Some copies of the funeral swan (Cygnus atratus) were imported from Australia and have now formed when only small colonies. The species of geese are found particularly in Central Europe and Scandinavia. Its distribution area extends mostly to the tundra of Siberia, where some extensive breeding areas are located.
Grey Goose, Bean Goose, White-fronted Geese and the smaller Canada goose and nuns are found mainly in Germany. In this respect the Lower Rhine is a popular breeding area. Also hump and whooper swan can be seen in Germany. The breeding range of the singing swan, however, is located in the taiga of Siberia. Canada and Barnacle Goose, both of which look very similar and differ only due to the significant size difference in favor of the Canada goose nest, as sea geese in the coastal regions, and enables the mentioned field goose species encountered in the backcountry near lakes and rivers. Striped and Red-chested come just as winter visitor to Central Europe. The same applies to the pink-footed goose and goose dwarf. The Bar-headed Goose deposits resulting from refugees from captivity and zoo. Also, the Canada goose is not autochthonous, but was already in the 17th Century, introduced in Europe. Shelduck, Ruddy Shelduck and fled Egyptian Geese belong to the subfamily of actually half goose, Tadornini, and stand between ducks and geese.