Jalpaiguri, Nov. 19: A three-day elephant census next week will focus on spotting injured animals alongside counting their numbers in the forests lying between the Mahananda wildlife sanctuary in the Terai and the Sankosh end of the Buxa Tiger Reserve in the Dooars. Forest department sources said one of the two elephants injured by the goods train on September 22 at Moraghat had been found dead and efforts would be made to locate the other one. Seven elephants, including one calf, were killed by the speeding goods train on September 22 night.