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

Bryan's Shearwater

Puffinus bryani

A diminutive and critically endangered seabird, Bryan's Shearwater was only formally recognized as a distinct species in 2011 through genetic analysis.

What it sounds like

Typical of small Puffinus species, consisting of high-pitched, rhythmic whistling and yapping sounds emitted at night.

Reference call, compare with what you heard

No reference call found yet · Xeno-canto

Field notes

It is the smallest shearwater species in the North Pacific, measuring approximately 25–30 cm in length.
The species was described from a specimen collected on Midway Atoll in 1963 that had been misidentified for decades.
The only confirmed extant breeding colonies are located on the remote Ogasawara Islands of Japan.
It is morphologically distinguished by its relatively long tail and unique bluish-gray coloration on its legs and feet.
Its population is extremely small, estimated at fewer than 250 individuals, making it one of the rarest birds in the world.

Habitat

Pelagic waters for foraging; nests in rocky crevices or burrows on high-elevation oceanic islands.

Range

Central and North Pacific Ocean, specifically Midway Atoll and the Ogasawara Archipelago.

Similar & commonly confused birds

Balearic ShearwaterPuffinus mauretanicus Bannerman's ShearwaterPuffinus bannermani Barolo ShearwaterPuffinus baroli Black-vented ShearwaterPuffinus opisthomelas Boyd's ShearwaterPuffinus boydi Christmas ShearwaterPuffinus nativitatis Fluttering ShearwaterPuffinus gavia Galapagos ShearwaterPuffinus subalaris

Heard a Bryan's Shearwater?

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