HOUSTON, M. I. 38th Annual Saskatchewan Christmas Bird Count – 1979. Blue Jay, [S. l.], v. 38, n. 1, 1980. DOI: 10.29173/bluejay4566. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4566. Acesso em: 12 may. 2024.