4,    adults,    anatids,    animals,    aves,    birds,    canards,    divers,    drakes,    ducks,    females,    format,    lakes,    laterally,    males,    move,    movement,    moves,    outdoors,    outside,    river,    stones,    streaks,    sunny,    sunshine,    swimming,    swims,    waterbirds,    waterfowls,