HOOPER, Ronald R. Possible Saskatchewan Sighting of Black Vulture. Blue Jay, [S. l.], v. 51, n. 2, 1993. DOI: 10.29173/bluejay5294. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/5294. Acesso em: 5 may. 2024.