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Moksnes, Arne; Røskaft, Eivin; Rudolfsen, Geir; Skjelseth, Sigrun; Stokke, Bård G; Kleven, Oddmund; Gibbs, H.Lisle; Honza, Marcel; Taborsky, Barbara; Teuschl, Yvonne; Vogl, Wolfgang; Taborsky, Michael (2008). Individual female common cuckoos Cuculus canorus lay constant egg types but egg appearance cannot be used to assign eggs to females. Journal of avian biology, 39(2), pp. 238-241. Copenhagen: Munksgaard 10.1111/j.2008.0908-8857.04158.x
