Swan geese refer to a migratory bird in the Anseridae family, also known as wild geese, which are good at flying and living in groups. Swan geese are divided into two subspecies: grey geese and white geese. They are widely distributed in the northern hemisphere and are one of the migratory birds that migrate across seasons.
Swan geese are usually large in size, with broad wings, excellent flying ability and sense of direction, and are known as "sky postmen" and "sky guerrillas". They make two large-scale migrations in spring and autumn, flying from the south or warm areas back to the north or cold areas, which requires a lot of energy and time.
In Chinese culture, swan geese symbolize unity, friendship and good wishes, and have become an important element in art forms such as literature, poetry, and painting.
