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

Corsican Finch

Carduelis corsicana

A small, active finch endemic to Mediterranean islands, distinguished from the Citril Finch by its brown-streaked mantle and more rufous tones.

What it sounds like

A fast-paced, high-pitched metallic twittering song, noticeably thinner and more rapid than the Citril Finch.

Reference call, compare with what you heard

0:00 / 0:14

Rec. Mats Rellmar · FranceCC BY-NC-SA Xeno-canto

Field notes

It was historically considered a subspecies of the Citril Finch until DNA analysis and morphological differences confirmed its status as a distinct species.
Unlike its green-backed mainland relative, the Corsican Finch possesses a warm, buff-brown back with dark, distinct streaking.
The species is strictly endemic to a few Mediterranean islands: Corsica, Sardinia, and the Tuscan Archipelago including Elba and Capraia.
It exhibits altitudinal migration, breeding in high-mountain scrub and descending to coastal maquis and farmland during the winter months.
The breeding season is relatively long, often starting in March and extending through June, with nests typically built in dense bushes like tree heath.

Habitat

Montane heathland with broom and juniper, rocky slopes with Mediterranean maquis, and open coniferous woodland edges.

Range

Corsica, Sardinia, and the Tuscan Archipelago.

Similar & commonly confused birds

Citril FinchCarduelis citrinella European GoldfinchCarduelis carduelis Gray-crowned GoldfinchCarduelis caniceps

Heard a Corsican Finch?

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