Assuming a dog only cares about how a duck sounds and not how it smells. We know that wouldn't work for other dogs. Which brings up something about simulating other animals. They're not human, and likely have sensory experiences that differ from our own. Perhaps a nematode worm is simple enough that we don't have to worry, but a dog or a duck are complex enough that we might leave that part out of the simulation. Or just not know how to fully simulate dog olfactory processing.