FRIESEN, Victor C. Of ravens, gulls and a pelican. Blue Jay, [S. l.], v. 58, n. 3, 2000. DOI: 10.29173/bluejay5948. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/5948. Acesso em: 28 mar. 2024.