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

Puerto Rican Nightjar

Antrostomus noctitherus

An endangered, nocturnal insectivore endemic to Puerto Rico, known for its cryptic plumage and historic rediscovery after being thought extinct for decades.

What it sounds like

A rapid, rhythmic, and repetitive 'whip-whip-whip' or 'guabairo' delivered at dusk and dawn.

Reference call, compare with what you heard

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Rec. Ross Gallardy · Puerto RicoCC BY-NC-SA Xeno-canto

Field notes

Rediscovered in 1961 after being considered extinct since the early 20th century.
Lays its eggs directly on leaf litter without building a formal nest, relying on perfect camouflage to avoid detection.
Maintains a highly restricted range, primarily within the Guánica, Susúa, and Maricao state forests.
Possesses long rictal bristles around the mouth that act as a funnel for capturing moths and beetles in flight.
Listed as Endangered due to habitat fragmentation and predation by introduced species like mongooses and rats.

Habitat

Dry limestone forests and semi-evergreen coastal scrub with thick leaf litter.

Range

Southwestern Puerto Rico

Similar & commonly confused birds

Buff-collared NightjarAntrostomus ridgwayi Chuck-will's-widowAntrostomus carolinensis Cuban NightjarAntrostomus cubanensis Dusky NightjarAntrostomus saturatus Eastern Whip-poor-willAntrostomus vociferus Hispaniolan NightjarAntrostomus ekmani Mexican Whip-poor-willAntrostomus arizonae Puerto Rican NightjarAntrostomus noctitherus

Heard a Puerto Rican Nightjar?

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