HAWKINS, Lori L. Nesting behaviour of male and female Whistling Swans and implications of male incubation. Wildfowl, [S. l.], v. 37, p. 5–27, 1986. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/154789. Acesso em: 4 apr. 2026.