Champagnon, Jocelyn, Matthieu Guillemain, Michel Gauthier-Clerc, Jean-Dominique Lebreton, and Johan Elmberg. 2013. “Consequences of Massive Bird Releases for Hunting Purposes: Mallard Anas Platyrhynchos in the Camargue, Southern France”. Wildfowl, April, 184-91. https://tidsskrift.dk/Wildfowl/article/view/153577.