. . . . . . . "2003-05-01T00:00:00Z"^^ . . "Anser brachyrhynchus" . . "Tracheophyta" . . "Fox, A.D. and E. Bergersen. 2005. Lack of competition between barnacle geese Branta leucopsis and pink-footed geese Anser brachyrhynchus during the pre-breeding period in Svalbard. Journal of Avian Biology 36:173-178." . . . . "Allen Hurlbert. 2017. Avian Diet Database." .