interestingly enough a group of falasha jews used to live in the mountains, in galbeed but we drove them out in ahmed gurey times,
they had their own language tho, i think yibir have their own sub dialect like many clans, but is it hebrew? i dont think so. maybe its related to the falasha language, then again im not convinced of the yibir jewsish roots. do they partake in jewish traditions, did they follow the torah? how come they dont come forth with any of that proof etc.
I think they was just pagan, and the last too convert to islam. they say bucur bacayr was pagan and doing magic, and was yibir.