QIQIHAR, May 18 (Xinhua) -- Captive-bred red-crowned cranes at Zhalong National Nature Reserve in Qiqihar, northeast China's Heilongjiang Province, have recently entered their breeding season, with many crane couples welcoming new offspring.

With a total area of 2,100 square kilometers, the reserve is dubbed "home of red-crowned cranes" in China, and serves as the world's largest red-crowned crane habitat and largest captive-bred red-crowned crane rewilding base.