Nature is dynamic and changing, and perhaps when the pressure from hunters is too great, or when tourists 'behavior goes beyond what the birds can bear, the collared bush robins may, after a careful reappraisal, make a new choice and move house again.
自然是動態發展的，或許當捕鳥壓力過大，或者遊客行為超出鳥兒忍受限度，栗背林鴝說不定在審慎評估一番後，又會另作選擇，再度搬家。