LANG, A; BLACK, J M. Foraging efficiency in Barnacle Geese Branta leucopsis: a functional response to sward height and an analysis of sources of individual variation. Wildfowl, [S. l.], p. 7–20, 2001. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/153972. Acesso em: 17 dec. 2025.