SASKATCHEWAN NATURAL HISTORY SOCIETY. 13th Annual Sask. Christmas Bird Count. Blue Jay, [S. l.], v. 12, n. 4, 1954. DOI: 10.29173/bluejay1327. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/1327. Acesso em: 19 dec. 2025.