SASKATCHEWAN NATURAL HISTORY SOCIETY. Watch for Marked Cowbirds. Blue Jay, [S. l.], v. 33, n. 1, 1970. DOI: 10.29173/bluejay4090. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4090. Acesso em: 28 apr. 2025.