ISO 639-3: ert
||Sarmi Regency, Mamberamo Tengah and Mamberamo Hulu subdistricts. West of Mamberamo River, Lakes Plain area in low mountains just south of Danau Bira (Lake Holmes), around Kustera airstrip: Erai (east), Kustera, and Haya (south) villages.
Indonesia, Eastern Papua, reference number 185
||Aliki, Babiruwa, Babrua, Babruwa, Baburiwa, Barua, Editode Edai, Erai, Eri, Haya
||The dialect in Obogwi village is similar but not the same. Also related to Kaiy [tcq], Doutai [tds], Biritai [bqq]. Lexical similarity: 76% with Obokuitai [afz], 50% with Sikaritai [tty].
||Lakes Plain, Tariku, East
||Vigorous. Some also use Bauzi [bvz].
||Literacy rate in L1: 0%–10%.
||SOV; tonal. Hunter-gatherers. Christian, traditional religion.