DICKSON, Ross; HECKER, Kerry. Swainson’s Hawk. Blue Jay, [S. l.], v. 70, n. 4, p. 274–278, 2012. DOI: 10.29173/bluejay345. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/345. Acesso em: 4 apr. 2025.