The bharal (Pseudoisnayaur), also called the blue sheep, is a caprine native to the high Himalayas. It is the only member of the genus Pseudois. It occurs in India, Bhutan, China (in Gansu, Ningxia, Sichuan, Tibet, and Inner Mongolia), Myanmar, Nepal, and Pakistan. It has horns that grow upwards, curve out, and then towards the back, somewhat like an upside down.

Bharal are active throughout the day, alternating between feeding and resting on the grassy mountain slopes.The bharal is categorized as Least Concern by the International Union for Conservation of Nature. It is categorized as a Schedule I species in the Indian Wildlife Protection Act. The population faces threats because of poaching for meat and competition with livestock.

Darjeeling Zoo is the participating zoo in the Conservation breeding Programme of this species with Sikkim Zoo as the coordinating zoo.

4 nos of blue sheep (2:2) were brought from Okinawa Kids Foundation, Japan as the founder stock. The two pairs of founder stock gave birth to a total of 10 individuals (6:4). One pair was transferred to Sikkim Zoo in 2013 and another pair to Nainital zoo on 2014.

The Park currently has a captive stock of 16 (10:6) Blue sheep.