Goose (plural: geese) is the English name for a considerable number of birds, belonging to the family Anatidae. This family also includes swans, most of which are larger than geese, and ducks, which are smaller. Goose in its origins is one of the oldest words of the Indo-European languages (Crystal). The term goose applies to the birds in general, and to a female in particular. The word gander is used for a male in particular. Young birds before fledging are called goslings. A group of geese on the ground is called a gaggle; when flying in formation is called a wedge or a skein.