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Crows of the New Caledonian variety stand out for their cunning and resourcefulness. They are known to create and manipulate tools, showing a capability once thought to be exclusive to primates. An impressive account involves a crow named Betty, who bent a wire to retrieve food from a tube—an act of ingenuity that stunned researchers. Experiments have continuously revealed crows' remarkable problem-solving skills, adaptability, and understanding of cause-and-effect relationships.

In advanced experiments, crows demonstrated the ability to assemble tools from various parts, a skill previously thought limited to humans and chimpanzees. These findings have sparked significant debate regarding acknowledged intelligence in the animal world and our apparent underestimation of avian capabilities.