Valéry, Loïc, and Vincent Schricke. “Trends in Abundance and Wintering Phenology of the Dark-Bellied Brent Goose Branta B. Bernicla in France Between 1982 and 2012”. Wildfowl (December 19, 2013): 57–73. Accessed December 16, 2025. https://tidsskrift.dk/Wildfowl/article/view/153610.