SHANDRUK, Len; HOOPER, Donald F.; BEAULIEU, Rhys. Trumpeter Swans Breeding in East-Central Saskatchewan. Blue Jay, [S. l.], v. 50, n. 2, 1992. DOI: 10.29173/bluejay5218. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/5218. Acesso em: 26 apr. 2024.