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

Costa Rican Warbler

Basileuterus melanotis

A small, active wood-warbler endemic to the high-altitude cloud forests of the Talamanca range, distinguished by its bold facial stripes and restless foraging behavior.

What it sounds like

A high-pitched, sputtering series of sharp 'tseet' notes that often accelerates into a rapid, chattering trill.

Reference call, compare with what you heard

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Rec. Paul Driver · Costa RicaCC BY-NC-SA Xeno-canto

Field notes

Formerly classified as a subspecies of the Three-striped Warbler before being recognized as a distinct species based on vocalizations and plumage.
It possesses a striking facial pattern featuring a black crown, white supercilium, and prominent black ear-patches.
Known for its 'restless' foraging style, it frequently flicks its wings and tail while hopping through dense undergrowth.
This species is a non-migratory resident, remaining in its high-elevation territory year-round.
It often serves as a core member of mixed-species foraging flocks, associating with bush-tanagers and other highland birds.

Habitat

Humid montane forest understory, cloud forests, and bamboo thickets.

Range

Highlands of Costa Rica and western Panama.

Similar & commonly confused birds

Black-cheeked WarblerBasileuterus melanogenys Chestnut-capped WarblerBasileuterus delattrii Golden-browed WarblerBasileuterus belli Golden-crowned WarblerBasileuterus culicivorus Pirre WarblerBasileuterus ignotus Rufous-capped WarblerBasileuterus rufifrons Tacarcuna WarblerBasileuterus tacarcunae Three-banded WarblerBasileuterus trifasciatus

Heard a Costa Rican Warbler?

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Identify a bird by its song