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

Curlew Sandpiper

Calidris ferruginea

A small, elegant migratory shorebird characterized by its distinctive down-curved bill and deep brick-red breeding plumage.

What it sounds like

A soft, liquid, two-syllable 'chirrip' or 'prip-prip' typically given in flight.

Reference call, compare with what you heard

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Rec. MILLON Xavier · FranceCC BY-NC-SA Xeno-canto

Field notes

Its decurved bill is a specialized tool for probing deep into soft mud for aquatic invertebrates.
It undergoes one of the longest migrations of any bird, traveling from the Siberian Arctic to as far south as Tasmania and South Africa.
In flight, it displays a conspicuous white rump, which distinguishes it from the similar Dunlin.
Male and female plumage is nearly identical, both turning a vibrant chestnut-red during the breeding season.
It occasionally hybridizes with other sandpipers, most notably resulting in the rare 'Cox’s Sandpiper' hybrid.

Habitat

Arctic tundra during breeding; coastal mudflats, estuaries, lagoons, and inland wetlands during the non-breeding season.

Range

Breeds in the central Siberian Arctic; winters throughout Africa, Southeast Asia, and Australasia.

Similar & commonly confused birds

Baird's SandpiperCalidris bairdii Broad-billed SandpiperCalidris falcinellus Buff-breasted SandpiperCalidris subruficollis DunlinCalidris alpina Great KnotCalidris tenuirostris Least SandpiperCalidris minutilla Little StintCalidris minuta Long-toed StintCalidris subminuta

Heard a Curlew Sandpiper?

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