KäßMANN, Sonja; WOOG, Friederike. How to cope with snow and ice: winter ecology of feral Greylag Geese Anser anser. Wildfowl, [S. l.], p. 29–39, 2013. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/153874. Acesso em: 16 dec. 2025.