A black-necked swan carefully grooming its feathers with its beak while swimming with its peers on a lake

wings neck white bird wilderness swan blacknecked migration coverts curious lagoon melancoryphus vegetation delicate swim behavior specie plumage float waterfowl aquatic relax peers underwater lake natural fauna black environment south american cygnus habitat sink migratory native group beak wild pond water nature food feathers bill peaceful flock head searching exotic