2,    adults,    aggressivity,    anatids,    angry,    animals,    attacking,    attacks,    aves,    birds,    canards,    ducks,    format,    kill,    killing,    kills,    lakes,    laterally,    move,    movement,    moves,    outdoors,    outside,    river,    summerly,    summertime,    summery,    sunny,    sunshine,    swans,    swimming,    swims,    waterbirds,    waterfowls,