4,    animals,    aves,    beaks,    bills,    birdhouses,    bird-nests,    birds,    boxes,    breeding,    common,    eat,    eats,    falcons,    fodder,    format,    hawks,    houses,    juveniles,    kestrels,    laterally,    nests,    of,    old,    outdoors,    outside,    raptor,    sunny,    sunshine,    wood,