FISHER, Robert M. 1976 Irruption of Clark’s Nutcracker in Cypress Hills, Alberta. Blue Jay, [S. l.], v. 37, n. 1, p. March 1979–37, 1979. DOI: 10.29173/bluejay4548. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4548. Acesso em: 3 jul. 2024.