Sawa, Yusuke, Colette Hall, Chieko Tamura, and Noboru Nakamura. 2021. “Seasonal Changes of Roosting and Foraging Areas for Lesser White-Fronted Geese Anser Erythropus Wintering in Japan”. Wildfowl 71 (November):108-19. https://tidsskrift.dk/Wildfowl/article/view/153428.