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

Eurasian Treecreeper

Certhia familiaris

A small, cryptic woodland bird specialized for climbing vertically up tree trunks using its stiff tail and decurved bill. It is easily recognized by its distinctive behavior of spiraling up trees in search of invertebrates.

What it sounds like

High-pitched, thin 'tsee' calls and a melodic, rippling song that descends in pitch.

Reference call, compare with what you heard

0:00 / 0:38

Rec. Bodo Sonnenburg · GermanyCC BY-NC-ND Xeno-canto

Field notes

It uses its stiff tail feathers as a prop to support its weight against tree trunks, much like a woodpecker.
The species exhibits a 'bottom-to-top' foraging pattern, spiraling up one tree before flying down to the base of the next.
Its long, down-curved bill is a specialized tool for extracting insects and spiders from deep bark crevices.
To survive cold nights, Eurasian Treecreepers may gather in communal roosts or huddle together in bark hollows.
It is distinguished from the nearly identical Short-toed Treecreeper by its longer hindclaw and brighter white underparts.

Habitat

Mature coniferous and mixed forests, particularly those with well-furrowed bark.

Range

Palearctic realm, stretching from Western Europe across Russia to Japan.

Similar & commonly confused birds

Bar-tailed TreecreeperCerthia himalayana Brown CreeperCerthia americana Hodgson's TreecreeperCerthia hodgsoni Hume's TreecreeperCerthia manipurensis Rusty-flanked TreecreeperCerthia nipalensis Short-toed TreecreeperCerthia brachydactyla Sichuan TreecreeperCerthia tianquanensis Sikkim TreecreeperCerthia discolor

Heard a Eurasian Treecreeper?

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