Which could mean something akin to the Talking Heads title "Stop Making Sense," as in "you should duck when logic comes your way."
Or it could refer to an old asian saying about a duck knowing how to roll with the waves as the water gets more and more stirred up in a storm.
Or maybe even that a duck is smart enough to go to the bathroom when in the water so it won't get it's feet wet. (That's why we do it.) All these things are duck logic.
But now it's been brought to our attention that duck logic also means keeping your dog's hunger satisfied.
What??? The way pet food should be? Wow. We wondered why the neighborhood dogs have been giving us the evil eye lately.
More puzzling evidence. Of what, we'll leave that to you.