SASKATCHEWAN NATURAL HISTORY SOCIETY. Christmas Bird Count Update – Val Marie, Saskatchewan. Blue Jay, [S. l.], v. 49, n. 2, 1991. DOI: 10.29173/bluejay5194. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/5194. Acesso em: 13 dec. 2025.