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

Choco Vireo

Vireo masteri

The Choco Vireo is a small, elusive passerine endemic to the humid montane forests of the Chocó bioregion, characterized by its olive plumage and distinctive pale supercilium.

What it sounds like

A rapid, high-pitched series of buzzy, ascending notes, often transcribed as a repetitive 'chree-chree-chree-chree'.

Reference call, compare with what you heard

0:00 / 0:11

Rec. Daan van der Hoeven · EcuadorCC BY-NC-SA Xeno-canto

Field notes

First described by science in 1996, it represents one of the most recent avian discoveries in the Western Hemisphere.
The species name 'masteri' was determined by an auction to raise funds for its own conservation, a pioneering event in bird taxonomy.
It is morphologically similar to the Yellow-winged Vireo but lacks the bright yellow wing edging and possesses a distinct facial pattern.
This species is a frequent participant in mixed-species foraging flocks, often found in the company of tanagers and warblers.
It is currently classified as Endangered due to its extremely small and fragmented range being threatened by intensive deforestation.

Habitat

Primary humid premontane and montane cloud forests, typically at elevations between 800 and 1,600 meters.

Range

A narrow latitudinal strip along the Pacific slope of the Andes in western Colombia and northwestern Ecuador.

Similar & commonly confused birds

Bell's VireoVireo bellii Black-capped VireoVireo atricapilla Black-whiskered VireoVireo altiloquus Blue Mountain VireoVireo osburni Blue-headed VireoVireo solitarius Brown-capped VireoVireo leucophrys Cassin's VireoVireo cassinii Chivi VireoVireo chivi

Heard a Choco Vireo?

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Identify a bird by its song