For the endangered Crested Ibis (Nipponia nippon), a great deal of conservation efforts both in situ and ex situ , has been successfully undertaken in China, which make it possible for further expanding of distribution. On 3 June, 2013, a breeding pair (H12♀ and B747♂) with 3 nestlings has been found in Fengliu village（32°58′06″N，108°31′47″E,elevation 526 m), Hanyin County, Shaanxi Province. The breeding pair continued to breed and fledged four nestlings successfully in the breeding season of 2014（Fig.1）. On 12 January, 2014, We found a wintering flock which composed of the breeding pair (H12♀ and B747♂),and their 3 offsprings, one individual (J41) from the wild population of Yangxian County, and two unidentified individuals. Our observation showed that gene exchange occurred between the reintroduced and the wild population since the pair formation of the individuals from the two populations in 2011. The reintroduction program carried out in Ningshan County has been facilitated the dispersal of the wild population (source population) to eastern areas of Qinling Mountains and might be in favor of the establishment of the reintroduced population (satellite population).