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

White-naped Swift

Streptoprocne semicollaris

The White-naped Swift is one of the world's largest swifts, a massive and powerful aerialist endemic to the rugged highlands of Mexico.

What it sounds like

Loud, dry, rasping chatters and high-pitched screeching notes typically emitted during group flight.

Reference call, compare with what you heard

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

Field notes

It is tied with the Biscutate Swift for the title of the largest swift species in the world, weighing up to 225 grams.
The species is uniquely endemic to Mexico, restricted primarily to the central and western mountainous regions.
Unlike many other Streptoprocne swifts, it typically lays a single-egg clutch rather than two.
It is a high-altitude specialist, often seen foraging thousands of feet above canyons and mountain peaks.
The distinctive white plumage on the nape is an incomplete collar, lacking the full ring seen in the related White-collared Swift.

Habitat

Deep river gorges, vertical cliff faces, and montane forests, often nesting behind waterfalls.

Range

Endemic to western and central Mexico.

Similar & commonly confused birds

Biscutate SwiftStreptoprocne biscutata Chestnut-collared SwiftStreptoprocne rutila Tepui SwiftStreptoprocne phelpsi White-collared SwiftStreptoprocne zonaris White-naped SwiftStreptoprocne semicollaris

Heard a White-naped Swift?

Open Birdsong, tap record, and identify the bird singing near you in seconds — then collect it in your field journal.

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