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

Double-toothed Kite

Harpagus bidentatus

A small, specialized Neotropical raptor characterized by two tooth-like notches on its bill and a distinct commensal relationship with forest primates.

What it sounds like

High-pitched, thin, and piercing 'tsip-tsip-tsip-tsee-eet' or a rising whistle.

Reference call, compare with what you heard

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Rec. Richard E. Webster · GuyanaCC BY-NC-SA Xeno-canto

Field notes

Possesses two unique tomial 'teeth' on the upper mandible used to sever the spinal cords of lizard and insect prey.
Commonly follows troops of capuchin and squirrel monkeys to capture prey items flushed by the mammals' movement.
Exhibits plumage mimicry, closely resembling the larger and more aggressive Bicolored Hawk to avoid predation or mobbing.
Nests consist of a small, shallow platform of twigs placed high in the canopy, often appearing fragile for a bird of its size.
During courtship, pairs engage in high-altitude soaring displays with wings held in a characteristic 'V' shape.

Habitat

Humid lowland evergreen forests, mature secondary growth, and forest edges.

Range

Tropical Americas, ranging from southern Mexico through Central America to the Amazon Basin and southeastern Brazil.

Similar & commonly confused birds

Rufous-thighed KiteHarpagus diodon Rufous-thighed KiteHarpagus diodon

Heard a Double-toothed Kite?

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