SPEIRS, J. M.; SPEIRS, D. H. Saskatchewan Birds in August, 1959. Blue Jay, [S. l.], v. 18, n. 1, 1960. DOI: 10.29173/bluejay2376. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/2376. Acesso em: 22 jul. 2024.