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

Rusty-flanked Treecreeper

Certhia nipalensis

A small, specialized passerine of the Himalayan highlands characterized by its distinctive rufous flanks and cryptic, bark-like upperparts.

What it sounds like

A faint, high-pitched 'tsip' call; the song is a thin, hurried series of whistling notes.

Reference call, compare with what you heard

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Rec. Sandeep Ramz · IndiaCC BY-NC-SA Xeno-canto

Field notes

Uses stiff, spiny tail feathers as a tripod-like support while foraging vertically on tree trunks.
Strictly climbs in an upward spiral pattern, flying back down to the base of a new tree once it reaches the top.
Features a rich rufous wash on the flanks and vent that distinguishes it from the similar Hodgson's Treecreeper.
Inhabits a high elevational band, typically breeding between 2,500 and 4,000 meters above sea level.
Its long, slender, decurved bill is a specialized tool for extracting small arthropods from deep bark fissures.

Habitat

Montane temperate forests, particularly those dominated by rhododendron, oak, and conifers.

Range

The Himalayan range across Nepal, Bhutan, northern India, northern Myanmar, and southwest China.

Similar & commonly confused birds

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

Heard a Rusty-flanked Treecreeper?

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

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