black swan cygnus atratus stands in a river near a large stone

alert anatidae animal anseriformes anserinae aqua aquatic arched atratus aves avian background beak beast beautiful bird birdwatching black bog curve cygnus eye fauna feather fisher fishing flight fluff fly galloanserae geese hackle head hole lake landscape marsh mire nature neck neognathae nice one out outdoor plumage pond pool red river rock sky stand standing stretch swamp swan swimming wading warily wary water waterfowl waterhole wetlands wild wildlife wing zoo zoological