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

Aberrant Bush Warbler

Horornis flavolivaceus

A small, elusive warbler of high-altitude thickets, characterized by its olive-green upperparts and distinctive yellowish wash on its throat and belly.

What it sounds like

A thin, high-pitched, and rhythmic series of whistling notes, typically transcribed as 'ptee-ptee-ptee-ptee'.

Reference call, compare with what you heard

0:00 / 0:08

Rec. Jelle Scharringa · ChinaCC BY-NC-SA Xeno-canto

Field notes

It was historically placed in the genus Cettia before molecular analysis moved it to Horornis.
The species is known for its 'skulking' behavior, remaining hidden in dense undergrowth even while singing.
It undergoes altitudinal migration, breeding at elevations up to 3,800 meters and descending to lower valleys in winter.
Multiple subspecies are recognized across its range, showing variations in the intensity of yellow and olive plumage tones.
Its diet is primarily insectivorous, focusing on small invertebrates found within bamboo and rhododendron thickets.

Habitat

Dense bamboo stands, montane scrub, and the thick understory of temperate forests.

Range

The Himalayas across to southern China and northern Southeast Asia.

Similar & commonly confused birds

Brownish-flanked Bush WarblerHorornis fortipes Fiji Bush WarblerHorornis ruficapilla Hume's Bush WarblerHorornis brunnescens Japanese Bush WarblerHorornis diphone Manchurian Bush WarblerHorornis canturians OdediHorornis haddeni Palau Bush WarblerHorornis annae Philippine Bush WarblerHorornis seebohmi

Heard a Aberrant Bush Warbler?

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