At the same time as Sun Yuan-hsun is putting radio transmitters on tawny fish owls and using the signals to track them, many other wild animals are running through the mountains and forests carrying transmitters on their bodies, just as people in Taipei carry mobile phones and pagers.
當孫元勳為黃魚鴞裝上無線電發報器，再由發報器發出的訊號來追尋鳥蹤；同時也有許多野生動物，身上背著發報器，像台北人隨身攜帶大哥大、B.B.CALL 一樣，四處奔跑於山林間。