It is not clear whether the breeding population around the Zhoushan islands mixes with the one on Mazu. Nor is the birds' wintering range known-possibly the Philippines, Borneo and perhaps Myanmar.
目前舟山群岛和妈祖所有繁殖鸟类的总数还不明确，鸟类过冬的范围也不明确——可能是菲律宾，婆罗洲或者是缅甸。
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