Jul. 11， 2017 （Xinhua） -- A herd of Tibetan antelope ewes migrate to breeding area at Changtang National Nature Reserve in southwest China’s Tibet Autonomous Region. It is a breeding season of Tibetan antelopes at Changtang. There are over 3，000 ewes awaiting delivery or just delivered simply at the reserve in Qiuka Region of Xainza County. The total number of Tibetan antelopes has risen to more than 200，000 at Changtang.