기러기, or "wild goose," is a type of waterfowl belonging to the family Anatidae. These birds are known for their long necks, strong wings, and distinctive honking calls. They are often found in wetlands, lakes, and rivers, where they feed on aquatic plants and grains. During migration, 기러기 travel in V-shaped formations, which helps them conserve energy. They typically migrate between their breeding grounds in the north and wintering areas in the south. This behavior is crucial for their survival, as it allows them to find food and suitable habitats throughout the year.