Close up high angle shot of Brown Mottled-Mallard Duck cleaning and pecking his feathers while resting by a river

mallard mallard duck waterfowl dabbling duck anatidae beak duck avian wild duck closeup plumage ducks water bird close up bird ornithology feathers anas platyrhynchos aves pecking wildlife duck pond animal birds feather mottled wing wetland fauna flock nature poultry portrait pond brownspeckled wings lake animals fluffy beautiful swimming water drakes brown wild cute floating river hens