SEALY, Spencer G. Was 1969 a Year of Local Abundance of Nesting Northern Harriers in the Battleford Area?. Blue Jay, [S. l.], v. 83, n. 3, p. 5, 2025. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/6432. Acesso em: 19 dec. 2025.