Dallmeier, Francisco Gomez, and Michael Kent Rylander. “Observations on the Feeding Ecology and Bioenergetics of the White-Faced Whistling Duck in Venezuela”. Wildfowl 33 (November 1, 1982): 17–21. Accessed April 15, 2026. https://tidsskrift.dk/Wildfowl/article/view/154225.