SHADICK, S. J. Townsend’s Warbler at Saskatoon. Blue Jay, [S. l.], v. 34, n. 2, 1970. DOI: 10.29173/bluejay3998. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/3998. Acesso em: 2 may. 2024.