BINNIE, Al; BINNIE, Betty. Ninth Annual May Bird Census, Regina. Blue Jay, [S. l.], v. 27, n. 3, 1969. DOI: 10.29173/bluejay3715. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/3715. Acesso em: 1 may. 2024.