2,    acorn,    adults,    Aix,    anatids,    animals,    aves,    birds,    canards,    common,    duckmeat,    ducks,    females,    format,    Highlight,    lakes,    laterally,    males,    move,    movement,    moves,    outdoors,    outside,    summerly,    summertime,    summery,    swimming,    swims,    waterbirds,    waterfowls,    wood,