The Polynesians brought chickens with them when they colonized a new island, so there are feral birds everywhere. While these are thus domestic stock (and have further been interbred with Western breeds now), they are probably relatively close to the ancestral wild jungle fowl.

Even in relatively recent historical times Polynesians would just go catch a wild chicken when they wanted chicken; but nowadays the birds seem to be more accustomed to being fed by humans than to being eaten by them. At any rate, this hen walked right up to me and insisted in no uncertain terms on having her picture taken.