A birdwatcher, armed with a telescope, found the pet sitting desperately on a rock.(一個手持望遠鏡的觀鳥者發現那只寵物絕望地坐在一塊石頭上。)

A birdwatcher kept an eye on his activities with his large binoculars.Nobody really knows why.(一個鳥類觀察者用他的大望遠鏡觀察他的一舉一動，沒人知道為什么。)

A birdwatcher can never fly with a flock of migrating birds, but a diver can loiter in a shoal of fish.(因為即便是觀鳥者也無法與鳥兒一同飛翔，但潛水者卻可以和魚兒共同在水中暢游。)

The whole viewing area was divided into 1600 points. Each birdwatcher was responsible for 25 meters, and was demanded to write down the types and quantities of birds within 24 hours.(整個觀察區域分成1600個點，每一個觀鳥者要求負責25米的區域范圍，并且記下24小時之內所看到的鳥的種類和數量。)