HARRIS, Wayne C. 58th annual Saskatchewan Christmas bird count - 1999. Blue Jay, [S. l.], v. 58, n. 1, 2000. DOI: 10.29173/bluejay5803. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/5803. Acesso em: 30 apr. 2024.