Tibetan antelopes gallop in the snowfield at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, May 8, 2024. (Xinhua/Jiang Fan)

LHASA, May 12, 2024 (Xinhua) -- Pregnant Tibetan antelopes have begun their annual migration to their habitual birth grounds at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region.

Pregnant Tibetan antelopes migrate to their habitual birth grounds at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, May 12, 2024. (Xinhua/Jiang Fan)

Tibetan antelopes walk over the top of a hill at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, May 10, 2024. (Xinhua/Jiang Fan)

A drone photo taken on May 10, 2024 shows pregnant Tibetan antelopes migrating to their habitual birth grounds at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region. (Xinhua/Tenzin Nyida)

A drone photo taken on May 10, 2024 shows pregnant Tibetan antelopes migrating to their habitual birth grounds at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region. (Xinhua/Jiang Fan)

An aerial drone photo taken on May 10, 2024 shows pregnant Tibetan antelopes migrating to their habitual birth grounds at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region. (Xinhua/Jiang Fan)

A drone photo taken on May 10, 2024 shows pregnant Tibetan antelopes migrating to their habitual birth grounds at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region. (Xinhua/Tenzin Nyida)

Pregnant Tibetan antelopes migrate to their habitual birth grounds at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region on May 8, 2024. (Xinhua/Tenzin Nyida)

Tibetan antelopes gallop in the snowfield at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, May 8, 2024. (Xinhua/Tenzin Nyida)

Pregnant Tibetan antelopes migrate to their habitual birth grounds at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region on May 10, 2024. (Xinhua/Tenzin Nyida)

Tibetan antelopes are seen in the snowfield at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, May 8, 2024. (Xinhua/Jiang Fan)

Tibetan antelopes gallop in the snowfield at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, May 8, 2024. (Xinhua/Tenzin Nyida)

An aerial drone photo taken on May 10, 2024 shows pregnant Tibetan antelopes migrating to their habitual birth grounds at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region. (Xinhua/Jiang Fan)