Aquatic birds are species that primarily live in or around water bodies, such as lakes, rivers, and oceans. They have specialized adaptations that help them thrive in these environments, including webbed feet for swimming and waterproof feathers. Common examples of aquatic birds include ducks, swans, and penguins. These birds often feed on fish, crustaceans, and aquatic plants, using their beaks to catch prey. Many aquatic birds are also migratory, traveling long distances between breeding and wintering grounds. Their unique behaviors and adaptations make them an important part of aquatic ecosystems.