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

Peregrine Falcon

Falco peregrinus

A powerful, cosmopolitan raptor renowned as the world's fastest animal, distinguished by its slate-gray plumage and dark malar stripe.

What it sounds like

A loud, harsh, and rapid 'kak-kak-kak-kak' usually given near the nest site.

Reference call, compare with what you heard

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Rec. Leander Khil · AustriaCC BY-NC-SA Xeno-canto

Field notes

Reaches speeds exceeding 200 mph (320 km/h) during its signature high-speed hunting dive, known as a stoop.
Possesses specialized bony tubercles in its nostrils that redirect high-pressure airflow, allowing the bird to breathe while diving.
Features a nictitating membrane (third eyelid) that acts as a specialized 'windshield' to protect and moisten eyes during high-velocity flight.
Successfully recovered from near-extinction in North America following the 1972 ban on DDT, which had caused catastrophic eggshell thinning.
Demonstrates remarkable urban adaptability, frequently utilizing skyscrapers and bridges as surrogate cliffs for nesting and hunting pigeons.

Habitat

Open landscapes, mountain cliffs, coastal crags, and increasingly, urban city centers.

Range

Global; found on every continent except Antarctica.

Similar & commonly confused birds

African HobbyFalco cuvierii American KestrelFalco sparverius Amur FalconFalco amurensis Aplomado FalconFalco femoralis Australian HobbyFalco longipennis Banded KestrelFalco zoniventris Bat FalconFalco rufigularis Black FalconFalco subniger

Heard a Peregrine Falcon?

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