4,    adults,    aves,    beating,    beats,    bicolor,    bicolour,    birds,    clouded,    cloudiness,    clouds,    cloudy,    flapping,    flaps,    flies,    flight,    format,    grey-white,    gulls,    laterally,    of,    outdoors,    outside,    seagulls,    summerly,    summertime,    summery,    takes,    taking,    two-colored,    two-coloured,    wing,