1,    a,    adults,    aggressivity,    anatids,    angry,    animals,    attacking,    attacks,    aves,    beating,    beats,    bicolor,    bicolour,    birds,    black-white,    flapping,    flaps,    format,    lakes,    laterally,    menacing,    outdoors,    outside,    solo,    summerly,    summertime,    summery,    sunny,    sunshine,    threatening,    threats,    two-colored,    two-coloured,    waterbirds,    waterfowls,    wing,