KOONZ, W. H. Unusual Nest Sight for Grackles. Blue Jay, [S. l.], v. 39, n. 2, 1981. DOI: 10.29173/bluejay4461. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4461. Acesso em: 4 may. 2024.