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

Stejneger's Petrel

Pterodroma longirostris

A small, agile gadfly petrel known for its striking underwing patterns and extensive trans-Pacific migratory route.

What it sounds like

Generally silent at sea; at breeding colonies, it emits a series of high-pitched, rhythmic 'ti-ti-ti' or yelping sounds.

Reference call, compare with what you heard

No reference call found yet · Xeno-canto

Field notes

It breeds exclusively on Alejandro Selkirk Island in the Juan Fernández Archipelago, Chile.
The species is named after Leonhard Stejneger, a prominent Norwegian-born American ornithologist.
It features a distinct dark 'M' pattern across its upperwings and back, visible during its rapid, banking flight.
Despite its small size, it migrates thousands of miles to winter in the subtropical and tropical North Pacific.
Nesting occurs in high-altitude burrows located in dense fern forests, often above 600 meters in elevation.

Habitat

Pelagic open ocean; nests in montane forests and steep, fern-covered ridges.

Range

Breeds in the Southeast Pacific; migrates to the North Pacific near Japan and Hawaii.

Similar & commonly confused birds

Atlantic PetrelPterodroma incerta Barau's PetrelPterodroma baraui Bermuda PetrelPterodroma cahow Black-capped PetrelPterodroma hasitata Black-winged PetrelPterodroma nigripennis Bonin PetrelPterodroma hypoleuca Cape Verde PetrelPterodroma feae Chatham Islands PetrelPterodroma axillaris

Heard a Stejneger's Petrel?

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