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

Red-eyed Vireo

Vireo olivaceus

A small, olive-green forest songbird distinguished by a gray crown, bold white eyebrow, and namesake red iris in adults.

What it sounds like

A repetitive series of short, whistled phrases with alternating rising and falling inflections, often interpreted as 'Here-I-am, over-here, see-me?'

Reference call, compare with what you heard

0:00 / 0:47

Rec. Thomas Ryder Payne · CanadaCC BY-NC-SA Xeno-canto

Field notes

Adults possess bright red irises, but juveniles have dark brown eyes until their first spring.
They are among the most prolific singers in North America, with individuals recorded singing over 20,000 phrases in a single day.
The nest is a delicate, pendulous cup suspended from a horizontal tree fork, often constructed using spider silk and decorated with lichen.
Though primarily insectivorous during the breeding season, they shift to a fruit-heavy diet while wintering in the Amazon basin.
They are long-distance neotropical migrants, traveling thousands of miles between their northern breeding grounds and South America.

Habitat

Deciduous and mixed-deciduous woodlands with a dense leafy canopy.

Range

Breeds across much of North America and Canada; winters in northern and central South America.

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 Red-eyed Vireo?

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