Ключевые слова: aquatic, australia, beautiful, bill, bird, black, cygnus, cygnus atratus, elegance, elegant, endangered, feather, feathers, float, floating, graceful, lake, majestic, native, neck, new zealand, plant, plants, plumage, protected, red, ripples, search, searching, swan, symbol, symbolic, threatened, water, water plant, waterbird, wings,