HARRIS, Wayne C. 57th annual Saskatchewan Christmas bird count - 1998. Blue Jay, [S. l.], v. 57, n. 1, 1999. DOI: 10.29173/bluejay5919. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/5919. Acesso em: 1 may. 2024.