adults,    anatids,    animals,    aves,    beating,    beats,    birds,    cleaning,    cleans,    flapping,    flaps,    format,    lakes,    laterally,    move,    movement,    moves,    outdoors,    outside,    preening,    preens,    river,    sunny,    sunshine,    swimming,    swims,    waterbirds,    waterfowls,    wing,