HODSON, Keith. Porcupine in Ferruginous Hawk’s Nest. Blue Jay, [S. l.], v. 26, n. 4, 1968. DOI: 10.29173/bluejay3028. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/3028. Acesso em: 4 apr. 2025.