GOLLOP, Bernie. International butterfly counts - Saskatchewan’ s contribution and the bird connection. Blue Jay, [S. l.], v. 57, n. 2, 1999. DOI: 10.29173/bluejay5799. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/5799. Acesso em: 17 mar. 2025.