SASKATCHEWAN NATURAL HISTORY SOCIETY. Food and Shelter Problems for Winter Birds. Blue Jay, [S. l.], v. 14, n. 1, 1956. DOI: 10.29173/bluejay1929. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/1929. Acesso em: 2 mar. 2024.