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A pair of crested ibises from China arrive at Japan's Narita Airport, Oct. 17, 2018. A pair of crested ibises from China arrived in Japan on Wednesday as a symbol of friendship between the two countries. (Xinhua/Hua Yi)

A pair of crested ibises from China arrive at Japan's Narita Airport, Oct. 17, 2018. A pair of crested ibises from China arrived in Japan on Wednesday as a symbol of friendship between the two countries. (Xinhua/Hua Yi)