a lone black-necked swan cygnus melancoryphus is floating on a blue lake.

shore water wetland bird reflection lake horizon lone black-necked swan cygnus melancoryphus floating blue glare distance sky clouds mountain range argentina calafate lago argentino swans swimming waterfowl surface sun glare range glitter bird swim elegance melancoryphus graceful sunny day argentina lake south america black-necked calafate azure swan ornithology ripple patagonia sky pond argentino grace quiet picturesque wildlife black neck calm cygnus patagonia mountains wild white clouds beautiful background blue landscape