Big-billed water birds are a type of bird that have large bills and live in or near water. Pelicans are one of the most well-known examples of this type of bird, with their distinctive long beaks and large size. They are found in many parts of the world, including coastal areas, wetlands, and rivers. Pelicans use their large bills to scoop up fish and other aquatic creatures from the water. They also have a pouch beneath their bill which they use to store food.