SPEAR, Jim. Hybrid Bluebird Nesting Near Russell, Manitoba. Blue Jay, [S. l.], v. 33, n. 4, 1970. DOI: 10.29173/bluejay3854. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/3854. Acesso em: 22 nov. 2024.