Ключевые слова: adult, america, animal, aquatic, bird, black, blue, couple, cygnus olor, feathers, kensington metropark, lake, large, mates, michigan, mute swan, nature, north america, orange, pair, park, plumage, pond, spring, swan, swim, tourism, two, united states, water, waterfowl, wetland, white, wildlife, wildlife refuge, wings,