As a special group of ewenki ethnic minority , with a population of 232 , they speak olguya dialect , a branch of manchu tungus language family . according to the historical documents , as early as back in 2000 bc , their ancestors already lived in wender forest tundra , over of nibuchu river , north - east part of out baigal lake and baigal lake from 16th century to the mid - 17 century , following wild deer , they came to the area near weile river , branch of lena river and weitmu , north - west of baigal lake . during 18th century , along silik river , this group of people reached big sin ' an mountain . the rich natural resources there became the sources of their livelihood 驯鹿鄂温克人是指居住在内蒙古自治区呼伦贝尔市所辖根河市敖鲁古雅鄂温克民族乡的鄂温克人，史称“使鹿部” ，使用的语言是满?通古斯语族鄂温克语敖鲁古雅方言，人口在2001年乡统计为232人，是我国鄂温克族中的独特群体。据史书记载，驯鹿鄂温克人的祖先在公元前2000年就居住在外贝加尔湖和贝加尔湖东北部尼布楚河上游的温多山林苔原高地。到了16世纪至17世纪中叶，他们追随野生驯鹿至贝加尔湖西北列拿河支流威吕河和维提姆河一带。
