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

Chaco Eagle

Buteogallus coronatus

The Chaco Eagle is a massive, endangered raptor of South American drylands, easily identified by its uniform slate-gray plumage and prominent occipital crest.

What it sounds like

A series of high-pitched, piercing, and drawn-out whistles, often described as a loud 'kree-kree-kree' or 'wheee-ee'.

Reference call, compare with what you heard

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Rec. Robson Silva e Silva · BrazilCC BY-NC-SA Xeno-canto

Field notes

It is one of the largest eagles in South America, with a wingspan reaching up to 1.8 meters (6 feet).
Its diet is highly specialized, primarily consisting of armadillos, skunks, and occasionally snakes or reptiles.
The species is classified as Endangered, with a global population estimated at fewer than 1,000 mature individuals.
Unlike many large eagles, it is known to be somewhat sluggish and often hunts by walking on the ground or perching for long periods.
Juveniles possess a distinct brown and white streaked plumage that takes approximately four to five years to transition into adult gray.

Habitat

Arid and semi-arid regions including dry deciduous forests, thorny shrublands, and open savannas.

Range

South-central South America, encompassing parts of Argentina, Paraguay, Bolivia, and Brazil.

Similar & commonly confused birds

Common Black HawkButeogallus anthracinus Cuban Black HawkButeogallus gundlachii Great Black HawkButeogallus urubitinga Rufous Crab HawkButeogallus aequinoctialis Savanna HawkButeogallus meridionalis Slate-colored HawkButeogallus schistaceus Slate-colored HawkButeogallus schistaceus Solitary EagleButeogallus solitarius

Heard a Chaco Eagle?

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Identify a bird by its song