The term for a duck that steals is a "mallard-onious" or "klepto-quack". However, it's important to note that this is a playful term and not an official scientific or zoological classification. In reality, ducks do not have a concept of theft or engage in criminal activities. They primarily focus on finding food, mating, and survival in their natural habitats. If you encounter a duck with seemingly stealing behavior, it is more likely related to their natural instinct to collect shiny objects or their curiosity towards unfamiliar items.
