Since edible insects have become fewer, egrets have started eating more fish--a pair of night egrets can get through ten or more fish in one night--a habit which has earned them the wrath of local fish raisers.
可捕食的蟲類漸少，海口魚塭也變成夜鷺覓食的地點。牠們被養殖業者視為「偷吃」的高手，靠著善涉水的長足及尖嘴，每隻一夜可吃掉十幾條魚。