HUBBARD, J. (Mrs.). Western Kingbirds and House Sparrows. Blue Jay, [S. l.], v. 34, n. 4, 1970. DOI: 10.29173/bluejay3874. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/3874. Acesso em: 1 may. 2024.