HOUSTON, M. I. 42nd Annual Saskatchewan Christmas Bird Count – 1983. Blue Jay, [S. l.], v. 42, n. 1, 1984. DOI: 10.29173/bluejay4619. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4619. Acesso em: 3 jul. 2024.