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

Gray's Grasshopper Warbler

Helopsaltes fasciolatus

Gray's Grasshopper Warbler is the largest member of its family, known for its loud, musical song and exceptionally secretive behavior within dense vegetation.

What it sounds like

A loud, rhythmic, and surprisingly musical 'chu-pwee chu-pwee chu-pwee' or a metallic 'cherr-cherr-cherr'.

Reference call, compare with what you heard

0:00 / 2:36

Rec. Peter Boesman · ChinaCC BY-NC-ND Xeno-canto

Field notes

It is the largest species in the family Locustellidae, measuring up to 18 centimeters in length.
The species was named in honor of John Edward Gray, a prolific British zoologist and head of zoology at the British Museum.
Formerly classified in the genus Locustella, it was moved to Helopsaltes following molecular phylogenetic analysis.
It is a long-distance migrant, traveling from breeding grounds in the East Palearctic to wintering grounds in Wallacea and New Guinea.
Despite its size and loud voice, it is notorious among birdwatchers for its 'skulking' habit, rarely emerging from thick undergrowth.

Habitat

Dense riparian thickets, tall grass, and forest edges, usually in close proximity to water.

Range

Breeds in Northeast Asia (Siberia, NE China, Korea, Japan) and winters in the Philippines, Indonesia, and New Guinea.

Similar & commonly confused birds

Marsh GrassbirdHelopsaltes pryeri Middendorff's Grasshopper WarblerHelopsaltes ochotensis Pallas's Grasshopper WarblerHelopsaltes certhiola Pleske's Grasshopper WarblerHelopsaltes pleskei Pleske's Grasshopper WarblerHelopsaltes pleskei Sakhalin Grasshopper WarblerHelopsaltes amnicola Sakhalin Grasshopper WarblerHelopsaltes amnicola

Heard a Gray's 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