HOOPER, Donald and Ronald. The Most Common Birds of the Somme Area. Blue Jay, [S. l.], v. 13, n. 1, 1955. DOI: 10.29173/bluejay2077. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/2077. Acesso em: 6 may. 2024.