KOONZ, W. H. Unusual Concentrations of Sandhill Cranes During the Breeding Season. Blue Jay, [S. l.], v. 48, n. 3, 1990. DOI: 10.29173/bluejay5067. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/5067. Acesso em: 4 may. 2024.