
These are species with at least one recorded territory in French Polynesia, not a national checklist: a bird list from eBird or Avibase is more complete. The counts follow recording effort as much as wildlife, so a country with more visitors and more naturalists will show more of both.
The species with the most open occurrence records in French Polynesia, among those a photograph exists for. Most recorded is not most numerous: it rewards animals that are common, conspicuous and live where people go.

Gygis alba

Anous stolidus

Geopelia striata

Lonchura castaneothorax

Anous minutus

Fregata minor

Egretta sacra

Fregata ariel

Phaethon lepturus

Sula sula

Gallus gallus

Stenella longirostris
The reference database has no regions filed under French Polynesia.
The field guide covers French Polynesia on the map, but none of its species have an entry written for them yet.