1,200 (Li and Whaley 2009). 30% of ethnic group (Salminen 2007). Only 12 fluent speakers in 1990, all over 65 yrs (Li and Whaley 2009). 800 monolinguals. Ethnic population: 8,200 (2000 census).
Heilongjiang province: Da Hinggan Ling prefecture, Huma and Tahe counties; Heihe prefecture, Xunke county; Yichun prefecture, Jiayin county, Heihe city; Nei Mongol Autonomous Region: Hulun Buir league, Butha and Oroqen banners.
8b (Nearly extinct). Language of recognized nationality: Oroqen.
Kumarchen, Orochen, Selpechen, Birarchen. Gankui in Inner Mongolia is the standard dialect.
Kumarchen dialect has some child speakers; Birarchen is moribund (Salminen 2007). All domains. Mostly middle-aged or elderly (Salminen 2007). Positive attitudes. Also use Daur [dta], Evenki [evn], Mandarin Chinese [cmn], Peripheral Mongolian [mvf], Russian [rus]. Used as L2 by Daur [dta], Evenki [evn].
Maintain native language and customs. Came to China from the Russian Federation. Traditional religion.