Close up portrait head shot, capturing the detail of a graceful black necked swan, cygnus melancoryphus floating on freshwater lake against bokeh water environment, Argentina South America

beak anatidae melancoryphus waterbird waterfowl necked swan bird marsh animal ornithology neck graceful wildlife birdwatching species red freshwater cygnus fauna majestic elegance black close up environment macro pond nature portrait lake detail beautiful aquatic feather swim river bill south america habitat elegant natural knob park water wild purity argentina outdoors buenos aires