a beautiful black-necked swan cygnus melancoryphus swims in the lake.

bird swan swans swimming black-necked blue black-necked feather glittering water surface elegant glare plumage background elegance waterfowl bay melancoryphus pond grace neck water swim graceful ornithology ripple wildlife calm wild ecology picturesque lake argentino amazing calafate south america lago clear cygnus cygnus birds black black avian argentino lake argentina aquatic white floating beautiful