Duckies?! Pardon my French, but WTF?! 

At the very bottom of the "Early life and military career" section, there is the sentence (simply this and nothing else): "Napoleon also liked duckies." Is this a joke that someone hasn't deleted yet, or a name for something (a food or whatever) that I'm not familliar with? There's no context whatever, so I can't even guess. Could somebody please tell me what is going on here (and what 'duckies' have to do with his military career)?