These two records provide important evidence that the Alaska dunlins are wintering in Chongming Dongtan and fishponds are often used as their foraging ground.

• 这两笔记录提供了美国阿拉斯加黑腹滨鹬在崇明东滩越冬的证据，并同时反映出鱼塘作为栖息地对冬候鸟的重要性。