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

Tennessee Warbler

Leiothlypis peregrina

A small, sharp-billed wood-warbler noted for its drab olive-and-gray plumage and an exceptionally loud, three-parted song.

What it sounds like

A loud, accelerating three-part song: 'tick-tick-tick-tick, wit-wit-wit-wit, ti-ti-ti-ti-ti-ti'.

Reference call, compare with what you heard

0:00 / 0:19

Rec. Paul Driver · United StatesCC BY-NC-SA Xeno-canto

Field notes

Despite its name, it does not breed in Tennessee; it was named by Alexander Wilson based on a specimen collected there during migration.
The species is a 'spruce budworm specialist,' with populations fluctuating significantly in response to outbreaks of these forest pests.
During the winter, it shifts from an insectivorous diet to a nectar-focused one, often defending flowering trees in Central and South America.
It possesses a particularly sharp, slender bill compared to other warblers, which is used for both gleaning insects and piercing the bases of flowers.
Unlike many of its relatives, it lacks white tail spots, a key diagnostic feature for identification in the field.

Habitat

Boreal forests and bogs during breeding; tropical forests, shade-coffee plantations, and scrub during winter.

Range

Breeds across the northern United States and Canada; migrates through the Eastern US to winter in Central and northern South America.

Similar & commonly confused birds

Colima WarblerLeiothlypis crissalis Lucy's WarblerLeiothlypis luciae Nashville WarblerLeiothlypis ruficapilla Orange-crowned WarblerLeiothlypis celata Virginia's WarblerLeiothlypis virginiae

Heard a Tennessee Warbler?

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Identify a bird by its song