2,    adults,    animals,    aves,    bird-nests,    birds,    breeding,    broods,    format,    grebes,    lakes,    laterally,    mirrored,    mirroring,    move,    movement,    moves,    nestles,    nests,    outdoors,    outside,    river,    rushes,    sunny,    sunshine,    swimming,    swims,    waterbirds,    waterfowls,