The Deer Park located on Hisar-Dhansu Road, Hisar district, is home to various species of deer, particularly Blackbuck, chital, spotted deer, and sambar. These species are native to India and are often found in forested and grassland areas.

Blackbuck is known for its distinctive spiral horns, and it is a species that has been heavily protected due to hunting pressures.

Chital and spotted deer are common in forests and grasslands, characterized by their spotted coats.

Sambar is a large species of deer with a dense coat, known for its impressive antlers.
However, the Nilgai, also known as the blue bull, is not found in this park. The Nilgai is a large antelope and is generally found in other regions of northern India, not specifically in the Hisar Deer Park.

Hence,Option D Is Correct.

The Ch. Surinder Singh Elephant Rehabilitation Centre (ERC) is situated at Ban Santour forest of Yamunanagar district.

 It is a project undertaken by the Haryana Forest Department, Government of Haryana in collaboration with Wildlife SOS. The injured, sick and saved elephants are rehabilitated in this centre.

Hence the correct option is C.

The Jatayu (Vulture) Conservation and Breeding Centre is located in the Panchkula district of Haryana.

The Jatayu (Vulture) Conservation and Breeding Centre is situated in the Panchkula district of Haryana, specifically near the Morni Hills area. It was established with the aim of conserving vultures, which are critically endangered in India. Vultures play a crucial role in the ecosystem by helping in the disposal of dead animals, and their decline has raised concerns about ecological imbalance.

This centre focuses on the breeding and rehabilitation of vulture species, especially the Gyps species, such as the White-rumped Vulture and Indian Vulture, which have seen significant population decline due to factors like poisoning, habitat destruction, and the use of veterinary drugs like diclofenac, which is toxic to vultures. The centre also raises awareness about vulture conservation among the local communities.

The Jatayu (Vulture) Conservation and Breeding Centre in Panchkula, Haryana, was set up as part of a broader initiative to address the alarming decline in vulture populations in India. Vultures, which are scavengers, have faced severe threats over the years, particularly due to human activities and environmental factors.

Key Points About the Vulture Conservation and Breeding Centre:

1. Purpose: The primary goal of the centre is to conserve and breed vultures, which are rapidly declining in number across India. The centre works to protect species such as the Indian Vulture, White-rumped Vulture, and Slender-billed Vulture, all of which are critically endangered. The centre's objective is to restore healthy vulture populations in the wild.

2. Decline of Vultures: The vulture population began to plummet in the late 20th century, largely due to the widespread use of diclofenac, a veterinary drug given to livestock. When vultures fed on carcasses of animals treated with diclofenac, they were poisoned, leading to mass deaths. Habitat loss and other factors, like electrocution from power lines and poaching, also contributed to their decline.

3. Breeding Programs: At the centre, a breeding program is in place to help the vultures reproduce in a controlled environment. The centre provides a safe, natural habitat where vultures can nest, breed, and raise their young. The idea is to eventually release the birds into the wild, where they can replenish the declining population.

4. Awareness and Education: The conservation centre also serves an educational purpose. It raises awareness about the importance of vultures in the ecosystem and their role in keeping the environment clean by feeding on carrion. The centre conducts outreach programs for the local community to educate them about the plight of vultures and the need for conservation.

5. Research and Monitoring: The centre also conducts research to better understand vulture biology, behavior, and health. Scientists and conservationists monitor the health of the birds, ensuring that they are free from diseases and toxins, such as diclofenac. This research is crucial in developing more effective conservation strategies for vultures.

6. Collaboration: The centre is part of the Vulture Conservation Action Plan launched by the Government of India and various wildlife organizations, aimed at curbing the vulture crisis. The plan emphasizes the banning of diclofenac and the establishment of vulture conservation and breeding centres across the country.

Hence Option B Is Correct.