SHIMADA, T; SHIMADA, K. Factors affecting vigilance in Greater White-fronted Geese Anser albifrons. Wildfowl, [S. l.], v. 54, p. 203–210, 2013. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/153881. Acesso em: 15 apr. 2026.