The specific example of competitive advantage exhibited by Darwin's finches is beak size and shape. Different species of finches have evolved different beaks that are specialized for different types of food sources. This adaptation allows the finches to compete with each other for food resources, and those with the most effective beaks for a particular food source have a greater chance of survival and reproduction. Over time, this results in the evolution of different species with distinct beak sizes and shapes, each with its own competitive advantage.
