WHITEHEAD, Peter J. Boofheads with deep voices: sexual dimorphism in the Magpie Goose Anseranas semipalmata. Wildfowl, [S. l.], p. 72–91, 1998. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/154605. Acesso em: 16 dec. 2025.