SASKATCHEWAN NATURAL HISTORY SOCIETY. Tenth Annual May Bird Census Regina District. Blue Jay, [S. l.], v. 28, n. 3, 1970. DOI: 10.29173/bluejay3734. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/3734. Acesso em: 13 dec. 2025.