2,    adults,    Aix,    anatids,    animals,    aves,    birds,    canards,    drakes,    ducks,    females,    format,    lakes,    laterally,    males,    mirrored,    mirroring,    move,    movement,    moves,    outdoors,    outside,    river,    swimming,    swims,    waterbirds,    waterfowls,