How accurate is Birdsong's bird identifier?

It runs Google's Perch, a research-grade acoustic model covering nearly 15,000 species. When a call is ambiguous, we say so honestly and let you record a second clip to confirm, rather than guessing.

Is my recording stored?

No. Your audio is used to identify the bird in the moment and isn't saved to our servers. The birds you confirm are kept as cards in your own field journal; the recordings themselves are not.

Is the bird identifier free?

Yes — identify birds every day for free, no account required. Birdsong Pro ($3.99/mo or $39.99/yr) unlocks unlimited IDs, full field guides, your growing collection, and shareable Field Report cards.

Do I need an account or internet to identify a bird?

You'll need a connection to identify, since the AI runs in the cloud. No account is needed to try it — sign in with Google or email to save your field journal and sync it across devices.

Birdsong field guide

Hawaii Oo

Moho nobilis

The Hawaii Oo was a large, nectar-feeding honeyeater endemic to the Big Island, distinguished by its glossy black plumage and brilliant yellow axillary tufts. It is now extinct, with the last confirmed sighting occurring in 1934.

What it sounds like

A loud, resonant, and flute-like 'ow-ow' or 'oh-oh' sound from which its common name is derived.

Reference call, compare with what you heard

No reference call found yet · Xeno-canto

Field notes

It was the largest species in the genus Moho, reaching a total length of approximately 32 centimeters.
Its bright yellow feathers were highly valued by Hawaiian royalty for the construction of ceremonial feather capes known as ʻahu ʻula.
The species' decline was driven by a combination of habitat destruction, introduced predators, and avian malaria carried by invasive mosquitoes.
It featured specialized, long, decurved bills and brush-tipped tongues optimized for extracting nectar from native lobelioids and ohi'a lehua flowers.
The central tail feathers were uniquely spiraled or 'lyre-shaped,' creating a distinctive silhouette during flight.

Habitat

Subtropical or tropical moist montane forests, specifically those dominated by ohi'a lehua and koa trees.

Range

Endemic to the island of Hawaii (the Big Island).

Similar & commonly confused birds

Bishop's OoMoho bishopi Kauai OoMoho braccatus Oahu OoMoho apicalis

Heard a Hawaii Oo?

Open Birdsong, tap record, and identify the bird singing near you in seconds — then collect it in your field journal.

Identify a bird by its song