4,    adults,    animals,    aves,    Babies,    Babys,    bird-nests,    birds,    bough,    boughs,    branches,    breeding,    broods,    chicks,    darters,    feeds,    fledglings,    format,    hatchlings,    immatures,    juveniles,    laterally,    nestles,    nests,    outdoors,    outside,    snakebirds,    summerly,    summertime,    summery,    trees,    twigs,    waterbirds,    waterfowls,