RANDELL, T. E. Early Record of Gyrfalcon Near Regina. Blue Jay, [S. l.], v. 20, n. 3, 1962. DOI: 10.29173/bluejay2852. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/2852. Acesso em: 22 jul. 2024.