LAHRMAN, Fred W.     . Ivory gulls at Nemieben Lake, Saskatchewan. Blue Jay, [S. l.], v. 35, n. 1, 1970. DOI: 10.29173/bluejay4138. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4138. Acesso em: 18 may. 2024.