The birds spotted on Monday are believed to be three- to four-year-old females, with some males under a year old.
The IUCN listed the Great Indian Bustard as endangered in 1994, but by 2011, it was Critically Endangered.
Renewable energy projects in the country have already impacted populations of the Great Indian Bustard, Lesser Florican, flamingos and Gyps vultures, among other species.
One in 8 bird species is currently endangered worldwide, and 93 that are globally threatened can be found in India.