RENAUD, Wayne R.; WAPPLE, Guy J. A Review of Saskatchewan Christmas Bird Counts: 1942-1976 (Part 1). Blue Jay, [S. l.], v. 35, n. 4, 1970. DOI: 10.29173/bluejay3895. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/3895. Acesso em: 22 nov. 2024.