KRIVDA, Walter. A Rare Migrant Californian Tortoise Shell Butterfly at the Pas, Manitoba. Blue Jay, [S. l.], v. 46, n. 2, 1988. DOI: 10.29173/bluejay4862. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4862. Acesso em: 2 may. 2024.