Three individuals of Sarus Crane (grus antigone) was sighted at Dorangi of Bachyauli VDC in the bufferzone area around Chitwan National Park in the third week of June 2010. This bird is considered as a vagrant species in Chitwan. The few reports were in the 1980s and it was not seen since a decade. The Nepal population is estimated less than 500 individuals. Chitwan National Park is the eastern limit of this species in Nepal.

This is globally threatened bird species listed as Vulnerable in the IUCN threatened category. The main threats are a combination of loss and degradation of wetlands, as a result of drainage and conversion to agriculture (for example wet rice paddy into dry sugarcane or soya bean), ingestion of pesticides, and the hunting of adults and collection of eggs and chicks for trade, food, medicinal purposes and, in some areas, to help prevent damage to crops. High human usage of wetlands results in a high rate of disturbance.

The Sarus Crane is the tallest flying bird in the world. (Height about 6 feet, weight about 3.5 kg and wingspan about 8 feet)

Sarus crane consists three subspecies Grus antigone antigone, G .a. sharpii and G. a. gilli. Nepal holds the subspecies antigone.