LAHRMAN, F. W. A Report on the Spring Migration in the Regina Area, 1959. Blue Jay, [S. l.], v. 17, n. 3, 1959. DOI: 10.29173/bluejay2427. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/2427. Acesso em: 6 dec. 2022.