ERSKINE, Anthony J. Birds Observed in North-Central Alberta, Summer 1964. Blue Jay, [S. l.], v. 26, n. 1, 1968. DOI: 10.29173/bluejay3286. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/3286. Acesso em: 16 apr. 2025.