Win, A.D., and G.J. Hickling. “Seasonal Grazing by Canada Geese (Branta Canadensis) on South Island Highcountry Pasture”. New Zealand Plant Protection 53 (August 1, 2000): 445–445. Accessed August 29, 2026. https://journal.nzpps.org/index.php/nzpp/article/view/3671.