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

Cassin's Auklet

Ptychoramphus aleuticus

A small, chunky, drab gray seabird of the North Pacific, distinguished by a small white crescent above the eye and a pale spot at the base of the lower mandible.

What it sounds like

A series of high-pitched, raspy, rhythmic 'kree-er' whistles, primarily heard at night on nesting grounds.

Reference call, compare with what you heard

0:00 / 3:38

Rec. Matthew L. Brady · United StatesCC BY-NC-SA Xeno-canto

Field notes

It is the only alcid species known to occasionally produce two broods in a single breeding season.
Equipped with a specialized sublingual pouch used to transport concentrated loads of zooplankton to its chicks.
They are strictly nocturnal at their breeding colonies to minimize predation by gulls and raptors.
Population health is a key indicator of marine productivity, as they are highly sensitive to ocean temperature shifts.
Unlike many other auklets, this species lacks ornate facial plumes or brightly colored bills during the breeding season.

Habitat

Open pelagic waters and offshore islands featuring soft soil for burrowing or rocky crevices.

Range

Northern Pacific coast, ranging from the Aleutian Islands in Alaska to central Baja California.

Heard a Cassin's Auklet?

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