KINGDON, Ken. Record nesting year for Great Gray and Nothern Hawk Owls in Riding Mountain National Park region during the spring of 2009. Blue Jay, [S. l.], v. 75, n. 3, p. 7–8, 2017. DOI: 10.29173/bluejay5. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/5. Acesso em: 26 apr. 2024.