The little egret is bigger than most riverside birds, with its long beak to catch fish. It is not at all shy, and will stand by the mountain stream, giving sidelong disdainful glances while casually gulping down the odd hapless fish.
由於山中溪谷空間與視界不似平原、河口開闊，這種隱蔽的地理環境造成動物獨來獨往的特性，因此在山上邂逅小白鷺，總是踽踽獨行、孤立溪畔。牠的體型比其牠溪鳥大，加上捉魚利器的長嘴，在溪澗睥睨週遭，毫不含蓄，吃起魚來大模大樣。