Hen Mallard Duck Preening Itself At The River During Sunny Day In Yangjaecheon, Seoul, South Korea

waterfowl mallard waterbird preening duck anas platyrhynchos beak quack female wetland plumage wildlife grooming marsh ornithology fowl hen habitat bird speckled pond creek animal nature environment national geographic reflection river water south korea cleaning wash wild lake itself feathers brown biology outdoor feather day background park sunny seoul landscape color yangjaecheon space