4,    adults,    animals,    aves,    Babies,    Babys,    bicolor,    bicolour,    bird-nests,    birds,    breeding,    chicks,    common,    fledglings,    format,    grey-white,    gulls,    hatchlings,    houses,    immatures,    juveniles,    laterally,    nestlings,    nests,    outdoors,    outside,    seagulls,    sits,    sitting,    summerly,    summertime,    summery,    sunny,    sunshine,    two-colored,    two-coloured,    windows,