A flock of Tibetan antelopes passing through the animal channel of Qinghai-Tibet Railway in Chumaer region, photo from Xinhua, August 9.

A Tibetan antelope is drinking near Qinghai-Tibet Railway, photo from Xinhua, August 9.

A Tibetan antelope is drinking near Qinghai-Tibet Railway, photo from Xinhua, August 9.

A Tibetan antelope is looking for food at Qingshui River bank near Qinghai-Tibet Railway, photo from Xinhua, August 9.

Tibetan antelopes of Ke Ke Xi Li Nature Reserve started their first migration after the launch of Qinghai-Tibet Railway. From the end of July, over 3,000 Tibetan antelopes have safely passed the special animal channel of Qinghai-Tibet Railway.

According to Tsega, director of Ke Ke Xi Li Administration Bureau, the launch of Qinghai-Tibet Railway hasn't influenced the normal migration of Tibetan antelopes.

A flock of Tibetan antelopes passing through the animal channel of Qinghai-Tibet Railway in Chumaer region, photo from Xinhua, August 9.

A Tibetan antelope is looking for food at Qingshui River bank near Qinghai-Tibet Railway, photo from Xinhua, August 9.