NERO, R.W. Bank Swallows Nesting in Gravel Stock-Pile. Blue Jay, [S. l.], v. 19, n. 1, 1961. DOI: 10.29173/bluejay2398. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/2398. Acesso em: 5 may. 2024.