He first collated satellite images and on-site observations of the Wild Bird Society. After computer analysis, he found that the spoonbills congregate in one area at the mouth of the river when resting, but that they scatter over a wide area to feed from fish ponds.
他首先結合七股地區的衛星影像及鳥會的實地觀察記錄，透過電腦處理，看出黑面琵鷺的休息區集中在海口地，攝食區則散佈在附近大大小小的魚塭。