Pirates.
pirates raided the northern Philippine islands prior to 1860; believed by the Ibatan to be cannibals
No Itneg a tawo, ki michan sa so tawo an abo danaw asin no kayo a maboya da.
The pirate people, well, they eat people if there is already no more fruit of trees that they see.
from the folk history Istoriya No Tirong Mana Itneg