A keeper looks after a Himalayan vulture artificially incubated at the Tibetan Plateau Wildlife Zoo in Xining City, Northwest China's Qinghai Province, April 25, 2019. This is the second Himalayan vulture artificially incubated at the zoo in three years, and it shows some maturing incubation techniques, according to the zoo's director Qi Xinzhang. (Photo: China News Service/Ma Mingyan)
A keeper looks after a Himalayan vulture artificially incubated at the Tibetan Plateau Wildlife Zoo in Xining City, Northwest China's Qinghai Province, April 25, 2019. This is the second Himalayan vulture artificially incubated at the zoo in three years, and it shows some maturing incubation techniques, according to the zoo's director Qi Xinzhang. (Photo: China News Service/Ma Mingyan)
Photo shows a Himalayan vulture artificially incubated at the Tibetan Plateau Wildlife Zoo in Xining City, Northwest China's Qinghai Province, April 25, 2019. This is the second Himalayan vulture artificially incubated at the zoo in three years, and it shows some maturing incubation techniques, according to the zoo's director Qi Xinzhang. (Photo: China News Service/Ma Mingyan)
Photo shows a Himalayan vulture artificially incubated at the Tibetan Plateau Wildlife Zoo in Xining City, Northwest China's Qinghai Province, April 25, 2019. This is the second Himalayan vulture artificially incubated at the zoo in three years, and it shows some maturing incubation techniques, according to the zoo's director Qi Xinzhang. (Photo: China News Service/Ma Mingyan)
A keeper looks after a Himalayan vulture artificially incubated at the Tibetan Plateau Wildlife Zoo in Xining City, Northwest China's Qinghai Province, April 25, 2019. This is the second Himalayan vulture artificially incubated at the zoo in three years, and it shows some maturing incubation techniques, according to the zoo's director Qi Xinzhang. (Photo: China News Service/Ma Mingyan)