"Branta leucopsis" is a scientific name given to a species of goose commonly known as the barnacle goose. Some synonyms for this species include Branta bernicla, Anser bernicla, and Bernicla leucopsis. These synonyms are used in scientific literature, taxonomy, and identification guides to refer to the same bird species. Barnacle geese are migratory birds that breed in the Arctic, and they are known for their striking black and white plumage. Synonyms are important in understanding the relationships between different species, as well as for accurate and clear communication in scientific research and conservation efforts.