KNAPTON, Richard W. Black Tailed Gull in Southern Manitoba. Blue Jay, [S. l.], v. 48, n. 1, 1990. DOI: 10.29173/bluejay4977. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4977. Acesso em: 7 may. 2024.