The Desert National Park is an excellent example of the ecosystem of the Thar Desert and its rich fauna. The Sudashri forest post is the most ideal place for observing wildlife in the Desert National Park. Sand dunes form less than 20 percent of the Park, which consists of craggy rocks, pavements and compact salt lake bottoms, intermedial areas and fixed dunes.

Its inhabitants include the blackbuck, chinkara, wolf, Indian fox, desert fox, hare and desert cat. Flights of sandfrouse start coming to waterholes from sunrise onwards. One also hear the morning call of the grey partridge. Blue tailed and green bee-eaters, drongos, common and bush quail and Indian rollers are birds, which are commonly found around waterholes. the park is also home to the great Indian Bustard which is peril of extinction..