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

Sulphur-bellied Flycatcher

Myiodynastes luteiventris

The Sulphur-bellied Flycatcher is a large, strikingly streaked tyrant flycatcher known for its pale yellow underparts and rufous tail. It is a specialized summer resident of sycamore-lined canyons in the American Southwest.

What it sounds like

A high-pitched, piercing series of squeaky notes often compared to the sound of a rubber squeeze toy.

Reference call, compare with what you heard

0:00 / 7:22

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

Field notes

It is the most heavily streaked species of flycatcher found in North America.
Unlike many flycatchers, it is an obligate cavity nester, utilizing natural hollows or old woodpecker holes.
The species is a long-distance migrant, traveling as far south as Bolivia and Peru during the winter months.
While primarily insectivorous, it significantly incorporates berries and small fruits into its diet during the post-breeding season.
Its plumage is nearly identical to the Streaked Flycatcher, but it is distinguished by its darker malar stripe and sootier chin.

Habitat

Riparian woodlands and montane canyons, particularly those featuring large sycamore, oak, and walnut trees.

Range

Breeds from southeastern Arizona and southwestern New Mexico south through Mexico to Costa Rica; winters in the western Amazon basin.

Similar & commonly confused birds

Baird's FlycatcherMyiodynastes bairdii Golden-bellied FlycatcherMyiodynastes hemichrysus Golden-crowned FlycatcherMyiodynastes chrysocephalus Streaked FlycatcherMyiodynastes maculatus Streaked FlycatcherMyiodynastes maculatus

Heard a Sulphur-bellied Flycatcher?

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