HOUSTON, M. I. 34th Annual Saskatchewan Christmas Bird Count - 1975. Blue Jay, [S. l.], v. 34, n. 1, 1970. DOI: 10.29173/bluejay4109. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4109. Acesso em: 7 may. 2024.