KREBA, Robert. Prothonotary Warbler at Regina, Saskatchewan. Blue Jay, [S. l.], v. 37, n. 2, 1979. DOI: 10.29173/bluejay4430. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4430. Acesso em: 7 may. 2024.