A black necked swan, cygnus melancoryphus swim on a wavy lake with a bevy of swans preening and grooming its feather at the background on a tranquil day, close up wildlife landscape

bevy wing feather groom black necked swan cygnus melancoryphus waterfowl south america anatidae freshwater marsh lake bird wild wildlife animal nature natural habitat environment close up preen water beak bill argentina underwing waterbird beautiful swim white pond buenos aires park macro birdwatching neck river aquatic elegant glide clean pecking moult pluck bath