OSTOFOROFF, Lawrence. Golden Eagles Preying on Porcupines. Blue Jay, [S. l.], v. 17, n. 4, 1959. DOI: 10.29173/bluejay2146. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/2146. Acesso em: 22 jul. 2024.