So the wintering period of Hooded Crane at Chongming Dongtan is about 5 months.

因此，白头鹤在崇明东滩的越冬期约为5个月。

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They were Hooded Crane (52 birds), White-naped Crane (4 birds), Red-crowned Crane (11 birds), Demoiselle Crane (11 birds).

其中白头鹤52只，丹顶鹤11只，白枕鹤4只，蓑羽鹤11只。

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Additionally, the population of oriental stork, white spoonbill and hooded crane were over 1% of the global geographical population.

其中，东方白鹳、白琵鹭和白头鹤的种群数量超过全球地理种群数量的1%。

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