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

Fasciated Tiger-Heron

Tigrisoma fasciatum

A cryptic, solitary wader specialized for life along turbulent mountain streams in the Neotropics. It is distinguished by its fine, wavy barring and unique preference for rocky riverine environments.

What it sounds like

A low, guttural, repetitive 'wok-wok-wok' or a deep, resonant booming typically heard at dawn or dusk.

Reference call, compare with what you heard

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Rec. Bernabe Lopez-Lanus · ArgentinaCC BY-NC-SA Xeno-canto

Field notes

Unlike most herons that prefer still water, this species is specialized for hunting in fast-flowing, rocky rivers.
Adults feature extremely fine, wavy black and buff vermiculations that provide near-perfect camouflage against sun-dappled stones.
The juvenile plumage is strikingly different, characterized by broad, coarse cinnamon-orange and black bars.
It is often observed standing perfectly motionless on large mid-stream boulders for long periods while waiting for prey.
The species has a shorter, stouter bill compared to its lowland relative, the Rufescent Tiger-Heron, likely an adaptation for its specific foraging niche.

Habitat

Rocky, fast-moving rivers and foothill streams within humid montane forests.

Range

Central and South America, ranging from Costa Rica through the Andes to northern Argentina and parts of the Guiana Shield.

Similar & commonly confused birds

Bare-throated Tiger-HeronTigrisoma mexicanum Rufescent Tiger-HeronTigrisoma lineatum Rufescent Tiger-HeronTigrisoma lineatum

Heard a Fasciated Tiger-Heron?

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