Geiger, Sylvie, Christel Wagner, Jean-Hervé Lignot, Yvon Le Maho, and Jean-Patrice Robin. “Intestinal Response to Prolonged Fasting and Subsequent Feeding in Mallard Anas Platyrhynchos”. Wildfowl (April 16, 2013): 167–175. Accessed February 13, 2026. https://tidsskrift.dk/Wildfowl/article/view/153580.