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

Kosrae Crake

Zapornia monasa

The Kosrae Crake was a small, secretive rail endemic to the island of Kosrae, now known only from two specimens and considered extinct since the mid-19th century.

What it sounds like

Reported by early 19th-century observers to have a surprisingly loud and resonant voice for its size.

Reference call, compare with what you heard

No reference call found yet · Xeno-canto

Field notes

It was historically known to the local population as 'Moho' and was described as being nearly flightless.
Only two physical specimens exist in the world, collected by naturalist Heinrich von Kittlitz in 1827.
The bird possessed striking red eyes and reddish legs that contrasted with its dark, fuliginous plumage.
Its extinction is primarily attributed to predation by invasive brown and black rats introduced by whaling ships.
Genetic analysis suggests its closest relative was likely the Spotless Crake (Zapornia tabuensis).

Habitat

Inland taro patches, coastal marshes, and dense, shady forest undergrowth.

Range

Kosrae (formerly Strong's Island) in the Caroline Islands, Micronesia.

Similar & commonly confused birds

Baillon's CrakeZapornia pusilla Band-bellied CrakeZapornia paykullii Black CrakeZapornia flavirostra Black-tailed CrakeZapornia bicolor Brown CrakeZapornia akool Hawaiian RailZapornia sandwichensis Henderson Island CrakeZapornia atra Kosrae CrakeZapornia monasa

Heard a Kosrae Crake?

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