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

Colima Warbler

Leiothlypis crissalis

The Colima Warbler is a large, ground-nesting wood-warbler characterized by its subtle gray plumage and distinctive yellow-orange undertail coverts. It is highly sought after by birders due to its extremely restricted range within the United States.

What it sounds like

A loud, rapid, dry trill similar to that of a Chipping Sparrow but more musical and varying in pitch.

Reference call, compare with what you heard

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Rec. Manuel Grosselet · MexicoCC BY-NC-SA Xeno-canto

Field notes

It is the largest member of the genus Leiothlypis, measuring significantly larger than its close relative, the Virginia's Warbler.
In the United States, its breeding range is almost entirely restricted to the Chisos Mountains of Big Bend National Park.
Nests are meticulously concealed on the ground, often tucked under overhanging bunchgrass or deep oak leaf litter.
The species was first discovered in the Sierra de Colima, Mexico, in 1889, but its U.S. presence wasn't confirmed until 1928.
Unlike many wood-warblers, the Colima Warbler lacks bold wing bars or tail spots, relying on its pale eye-ring and rufous crown patch for identification.

Habitat

High-altitude montane forests featuring a mix of oak, pine, and juniper with a dense, leafy understory.

Range

Breeds in the Chisos Mountains (Texas) and the Sierra Madre Oriental (Mexico); winters in southwestern Mexico.

Similar & commonly confused birds

Lucy's WarblerLeiothlypis luciae Nashville WarblerLeiothlypis ruficapilla Orange-crowned WarblerLeiothlypis celata Tennessee WarblerLeiothlypis peregrina Virginia's WarblerLeiothlypis virginiae

Heard a Colima Warbler?

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