![A crested ibis from China receives physical examination at the Sado Japanese Crested Ibis Conservation Center in Niigata Prefecture, Japan, 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/Ma Caoran)](http://www.ecns.cn/hd/2018/10/18/a3bbe88a246442258d132779b2962994.jpg)
A crested ibis from China receives physical examination at the Sado Japanese Crested Ibis Conservation Center in Niigata Prefecture, Japan, 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/Ma Caoran)
![A pair of crested ibises from China arrive in 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)](http://www.ecns.cn/hd/2018/10/18/22341b26de22412fbe30e6d1561fa835.jpg)
A pair of crested ibises from China arrive in 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 crested ibis from China receives physical examination at the Sado Japanese Crested Ibis Conservation Center in Niigata Prefecture, Japan, 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/Ma Caoran)](http://www.ecns.cn/hd/2018/10/18/0b7bf374e9d047fbbcf2861df7223c70.jpg)
A crested ibis from China receives physical examination at the Sado Japanese Crested Ibis Conservation Center in Niigata Prefecture, Japan, 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/Ma Caoran)
![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)](http://www.ecns.cn/hd/2018/10/18/fde91b88b31845eba76feda6c2dc08dc.jpg)
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 the Sado Japanese Crested Ibis Conservation Center in Niigata Prefecture, Japan, 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/Ma Caoran)](http://www.ecns.cn/hd/2018/10/18/13e952e9a38d400c861c39b645da27e1.jpg)
A pair of crested ibises from China arrive at the Sado Japanese Crested Ibis Conservation Center in Niigata Prefecture, Japan, 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/Ma Caoran)