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

Cerulean Warbler

Setophaga cerulea

The Cerulean Warbler is a small, sky-blue wood-warbler that breeds in the high canopies of mature deciduous forests and is a species of significant conservation concern.

What it sounds like

A buzzy, accelerating series of notes ending in a higher-pitched trill, often described as 'zray-zray-zray-zreeeeee'.

Reference call, compare with what you heard

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Rec. Matt Wistrand · United StatesCC BY-NC-SA Xeno-canto

Field notes

It is one of the fastest-declining neotropical migratory songbirds in North America due to habitat fragmentation.
Females perform a 'bungee-jump' exit from the nest, dropping straight down into the mid-story before flying away to avoid leading predators to the site.
They are high-canopy specialists, often foraging and nesting more than 50 feet above the forest floor.
The species requires large, contiguous tracts of mature hardwood forest, making it highly sensitive to edge effects.
During migration, they travel thousands of miles to winter in a narrow elevational band of the Andes Mountains.

Habitat

Mature deciduous forests with large trees and an open understory, often near river valleys or on steep slopes.

Range

Breeds in the eastern United States and Great Lakes region; winters in the montane forests of the northern Andes in South America.

Similar & commonly confused birds

Adelaide's WarblerSetophaga adelaidae American RedstartSetophaga ruticilla Arrowhead WarblerSetophaga pharetra Bahama WarblerSetophaga flavescens Barbuda WarblerSetophaga subita Bay-breasted WarblerSetophaga castanea Black-throated Blue WarblerSetophaga caerulescens Black-throated Gray WarblerSetophaga nigrescens

Heard a Cerulean Warbler?

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