SASKATCHEWAN NATURAL HISTORY SOCIETY. Summary of the Manitoba 1971 Christmas Bird Count. Blue Jay, [S. l.], v. 30, n. 2, 1972. DOI: 10.29173/bluejay3591. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/3591. Acesso em: 22 mar. 2025.