Robuta

https://www.animaldiversity.org/accounts/Anser_erythropus/classification/ Anser erythropus (lesser white-fronted goose) | CLASSIFICATION | Animal Diversity Web lesser white fronted goose anser erythropus classification animal diversity https://www.oulu.fi/en/theses/ecology-and-conservation-lesser-white-fronted-goose-anser-erythropus Ecology and conservation of the Lesser White-fronted Goose Anser erythropus | University of Oulu lesser white fronted goose ecology and conservation