MCNICHOLL, Martin K. Mid-March Singing By American Robin and Varied Thruh in Southwestern Alberta. Blue Jay, [S. l.], v. 36, n. 2, 1978. DOI: 10.29173/bluejay4411. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4411. Acesso em: 4 may. 2024.