• [Wiki] http://en.wikipedia.org/wiki/Anas_platyrhynchos.
• [avibase] https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=85625D75F2524457&sec=lifehistory.
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• [Rudo1978] Rudolph, W. (1978). Die Hausenten. A. Ziemsen-Verlag, Wittenberg Lutherstadt.
• [SnowPerr1998] Snow, D. W. and Perrins, C. M. (1998). The Birds of the Western Palearctic, Concise Edition. Oxford University Press, Oxford.