"As long as you find a place with the right kind of topography, you can just sit back and wait," says Liu K'e-hsiang, a birdlover who believes that stream birds are the easiest kind of birds to observe.
許多水鳥，每年更飛渡重洋，巡迴於南、北半球，不停在各個國度遷移，到了一地只作暫時停歇，賞鳥者想追隨更不可能。觀察溪鳥，「只要找到適當的地形，坐下來枯坐就成了」，鍾情賞鳥的劉克襄也認為觀賞溪鳥最輕鬆。