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

Green-backed Sparrow

Arremonops chloronotus

A large, terrestrial sparrow of Central America recognized by its olive-green upperparts and bold gray and black head stripes.

What it sounds like

An accelerating series of clear 'chip' notes that often culminates in a rapid, buzzy trill.

Reference call, compare with what you heard

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Rec. Peter Boesman · GuatemalaCC BY-NC-ND Xeno-canto

Field notes

Constructs a bulky, domed nest with a side entrance hidden in low vegetation or on the ground.
Displays a distinct yellow patch at the bend of the wing, characteristic of the Arremonops genus.
Forages primarily by scratching through leaf litter in dense undergrowth for insects and seeds.
While similar to the Olive Sparrow, it is distinguished by its darker plumage and more humid habitat preferences.
Forms long-term pair bonds and is often seen in pairs rather than large flocks.

Habitat

Dense tropical evergreen forest edges, thickets, and humid second-growth scrub.

Range

Southeastern Mexico through the Yucatán Peninsula to northern Guatemala, Belize, and northern Honduras.

Similar & commonly confused birds

Black-striped SparrowArremonops conirostris Olive SparrowArremonops rufivirgatus Tocuyo SparrowArremonops tocuyensis

Heard a Green-backed Sparrow?

Open Birdsong, tap record, and identify the bird singing near you in seconds — then collect it in your field journal.

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