HOUSTON, C. Stuart. Two of Saskatchewan’s Oldest and Most-Studied Raptors. Blue Jay, [S. l.], v. 74, n. 3, p. 16–18, 2016. DOI: 10.29173/bluejay231. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/231. Acesso em: 18 apr. 2024.