Bar-headed Geese in Assam Bar-headed goose, locally known as Dhitaraj, arrives in Assam in November or December and departs by March. A group of Bar-headed geese swimming in water. Image ©Adesh Shivkar. By Mithu Das August 30, 2011 Weighs two to three kg and 75 cm long, Bar-headed goose, locally known as Dhitaraj, arrives in Assam in November or December and departs by March. The bird can be easily identified by two black bars on it's forehead. In winter, Bar-headed geese can be seen in many places in Assam. However, large population gather in Kazira