Whereas, the Sultanpur National Park ( about 15 km from Gurgaon and about 45 km from Delhi) is important and known for aquatic avifauna where about 30,000 birds belonging to about 250 species have been listed in this park during winters and the important birds visiting this park are Pelicans, Herons, Egrets, Storks, Flamingoes, Geese, Ducks, etc.