FLETCHER, Garry L. Summer Record of a Snowy Owl. Blue Jay, [S. l.], v. 23, n. 2, 1965. DOI: 10.29173/bluejay3053. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/3053. Acesso em: 6 may. 2024.