MARSHALL, A. A Study of Nesting Canada Geese at Condie Nature Refuge, Saskatchewan. Blue Jay, [S. l.], v. 37, n. 3, 1979. DOI: 10.29173/bluejay4662. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4662. Acesso em: 1 dec. 2022.