Note:  Do not rely on this information. It is very old.

Ibanags

Ibanags, a Malay people, Philippine Archipelago, province of Cagayan, island of Luzon and neighbouring Babuyan and Batanes islets. The Ibanags, whose language is the chief medium of intercourse between the settled populations and the surrounding wild tribes, are a fierce, warlike nation, whose reduction cost the Spaniards more trouble than that of any other people in Luzon. Those of the Batanes Isles are still mostly pagans; but nearly all the rest have been nominal Roman Catholics since the end of the sixteenth century. They cultivate tobacco and rice, own large herds of swine and goats, and emigrate in considerable numbers, especially to Manila. (Fr. Blumentritt, Ethnologie der Philippinen.)

Click for more about Blumentritt