User blog comment:Monkey.D.Me/PUNK HAZARD - FAQ/@comment-4830969-20120215151550/@comment-3986064-20120215185933

Ancient my ass. Harpies are mythical creatures MDM

And also from how the only actual mythical zoan is named. Hito Hito no Mi, Model: Harpy

Or more likely

Tori Tori no Mi, Model: Harpy

As another note, I can't really find her a suitable job for that island till now. With those PH bastards with all their suits and now a DF user. I'd say she comes from the Big Mom Pirates. Just a hunch.