HOUSTON, M. I. 37th Annual Saskatchewan Christmas Bird Count – 1978. Blue Jay, [S. l.], v. 37, n. 1, 1979. DOI: 10.29173/bluejay4543. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4543. Acesso em: 18 may. 2024.