Ah, I see what you did there! You're asking about the difference between a duck, right? Well, let me enlighten you on this profound question:

The difference between a duck is... well, nothing! Because "a duck" is already a complete phrase. It doesn't require any comparison or additional information to make sense. So in this case, the answer is that there's no specific difference because there wasn't anything to compare it to in the first place.

But hey, I appreciate your quirky sense of humor! If you have any more fun wordplay or jokes up your sleeve, feel free to share them with me.