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

Mountain Bluebird

Sialia currucoides

The Mountain Bluebird is a striking cerulean songbird of the high country, notable for its vibrant sky-blue plumage and unique hovering hunting style. It is a hardy species that thrives in open, high-elevation environments across western North America.

What it sounds like

A soft, low-pitched 'tew' or 'phew' call; the song is a series of short, clear, warbling whistles often delivered at dawn.

Reference call, compare with what you heard

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Rec. Richard E. Webster · United StatesCC BY-NC-SA Xeno-canto

Field notes

Unlike other bluebirds, males are almost entirely cerulean blue with no reddish-orange on their breast.
They frequently use a hunting technique called 'kiting,' where they hover in mid-air over fields before diving for insects.
Mountain Bluebirds are high-altitude specialists, capable of breeding in subalpine meadows at elevations exceeding 12,000 feet.
They are secondary cavity nesters, often competing with Tree Swallows and House Wrens for abandoned woodpecker holes or nest boxes.
In winter, their diet shifts from insects to small fruits and berries, particularly those from juniper and mistletoe.

Habitat

Open grasslands, sagebrush flats, alpine meadows, and recently burned forest clearings.

Range

Western North America, from central Alaska and western Canada south to central Mexico.

Similar & commonly confused birds

Eastern BluebirdSialia sialis Western BluebirdSialia mexicana

Heard a Mountain Bluebird?

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