2,    adults,    aves,    beaks,    bicolor,    bicolour,    bills,    birds,    calls,    clouded,    cloudiness,    clouds,    cloudy,    cries,    cry,    format,    grey-white,    gulls,    laterally,    open,    outdoors,    outside,    scream,    screams,    seagulls,    shouting,    shouts,    stands,    summerly,    summertime,    summery,    to,    two-colored,    two-coloured,