Schlatter, Roberto, Juan Salazar, Alex Villa, and Javiera Meza. “Demography of Black-Necked Swans Cygnus Melancoryphus in Three Chilean Wetland Areas”. Wildfowl (April 16, 2013): 88–94. Accessed February 13, 2026. https://tidsskrift.dk/Wildfowl/article/view/154999.