HANDRIGAN, Sara A.; SCHUMMER, Michael L.; PETRIE, Scott A.; NORRIS, D. Ryan. Range expansion and migration of Trumpeter Swans Cygnus buccinator re-introduced in southwest and central Ontario. Wildfowl, [S. l.], v. 66, p. 60–74, 2016. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/153681. Acesso em: 5 apr. 2026.