WARKENTIN, Ian G. The Wintering Merlins of Saskatoon. Blue Jay, [S. l.], v. 51, n. 2, 1993. DOI: 10.29173/bluejay5291. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/5291. Acesso em: 6 may. 2024.