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

Common Grasshopper Warbler

Locustella naevia

The Common Grasshopper Warbler is a small, elusive passerine famous for its mechanical, insect-like song and mouse-like behavior within dense undergrowth.

What it sounds like

A rapid, persistent mechanical reeling or whirring, reminiscent of a fisherman's reel or a grasshopper.

Reference call, compare with what you heard

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Rec. Louis-Marie Gourmelon · FranceCC BY-NC-SA Xeno-canto

Field notes

Its song is a high-pitched, monotonous trill that can last for several minutes, closely mimicking the stridulation of a grasshopper or cricket.
Rather than flying when threatened, this warbler typically runs through thick vegetation in a manner often described as mouse-like.
The species is notoriously difficult to observe, as it spends the vast majority of its time skulking deep within brambles or tall grass.
It is a long-distance migrant, traveling from breeding grounds in Europe and temperate Asia to wintering sites in sub-Saharan Africa.
The bird's rounded tail and heavily streaked olive-brown plumage provide exceptional camouflage against its preferred scrubland backdrop.

Habitat

Dense low vegetation such as scrub, gorse, damp meadows, and young deciduous plantations.

Range

Breeds across temperate Europe and Western Asia; winters in West and North Africa.

Similar & commonly confused birds

Baikal Bush WarblerLocustella davidi Bamboo WarblerLocustella alfredi Benguet Bush WarblerLocustella seebohmi Brown Bush WarblerLocustella luteoventris Buru Bush WarblerLocustella disturbans Chinese Bush WarblerLocustella tacsanowskia Dalat Bush WarblerLocustella idonea Friendly Bush WarblerLocustella accentor

Heard a Common Grasshopper Warbler?

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