MCGRATH, B. E. Saskatchewan Flock of Swainson’s Hawks. Blue Jay, [S. l.], v. 46, n. 2, 1988. DOI: 10.29173/bluejay4870. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4870. Acesso em: 26 sep. 2022.