HANSON, Lenita; SMITH, A. R. Great blue heron colonies in Saskatchewan in 1999, a preliminary inventory. Blue Jay, [S. l.], v. 58, n. 2, 2000. DOI: 10.29173/bluejay5657. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/5657. Acesso em: 9 may. 2024.