FRIESEN, Victor C. The Crazy Flight Phenomenon of the Ruffed Grouse. Blue Jay, [S. l.], v. 29, n. 3, 1971. DOI: 10.29173/bluejay3755. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/3755. Acesso em: 2 apr. 2025.