SASKATCHEWAN NATURAL HISTORY SOCIETY. The New York Standards of Abundance, Frequency and Occurrence. Blue Jay, [S. l.], v. 15, n. 2, 1957. DOI: 10.29173/bluejay1814. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/1814. Acesso em: 2 jan. 2025.