Field console · No ID algorithm

Keep the evidence.
Then decide.

Separate what you observed from what an app suggested. Build a private, portable reasoning trail before you log a bird.

Works offlineStays on deviceExports cleanly

Illustrated field desk with an analog receiver, binoculars, evidence notes, and a sound waveform

Current observation

Evidence workbench

Ready locally

01Context 02Look 03Listen 04Candidates 05References 06Decision

Observed fact

When and where

Required for a complete card

Date & time * Locality *Name the broad place, not a nest site.

Location detail in exports

PrivateLocality only Approx.~10 km PreciseCoordinates

Privacy shutter on. Coordinates are excluded. Avoid recording nest locations for sensitive species.

Latitude Longitude

Habitat Conditions

Observed fact

What you saw

View quality

Not seen Glimpse Clear

Visual traitsSpecific negatives help too: “no black wing tips visible.”

Observed fact

What you heard

Call or song notes No call heardThis is still useful observed evidence.

Suggestion, not observation

Candidate species

Record who suggested it and why it does or does not fit. Confidence is yours—not the app’s score.

User-selected sources

Reference recordings

Link to material you have permission to use. This app stores the link and your notes; it never copies or hosts the audio.

No references linked yet. This step is optional.

Your conclusion

Decision

Review status

UnresolvedKeep comparing LikelyEvidence leans one way VerifiedIndependently supported

Current identification Reasoning and next check

Live card readout

Draft · 1/5

Field recordUNFILED

Unresolved bird

Observed: Add a date
Locality: Private locality
Leading candidate: None yet
Confidence: —

Observed evidence

Your visual and audio notes will appear here.

UNRESOLVED⌾ LOCALITY ONLY

A complete card is not a certain ID. It means your uncertainty has a useful trail.

Device archive

Saved evidence cards

No filed cards yet

Your current draft is still safe. Save it when you have enough evidence to revisit later.

Method, not verdict

A two-minute evidence check

1
Write from memory first
Record shape, movement, habitat, and sound before opening another guide. This limits suggestion bias.
2
Name alternatives
Add at least two candidates when possible. Note one fit and one contradiction for each.
3
Compare lawful references
Link to openly licensed recordings or material you own. Confirm the caller was likely the bird you saw.
4
Log at the evidence level
“Unresolved” is a useful result. Only use “verified” when independent evidence supports the identification.

What this tool does not do

It does not identify birds, download recordings, connect to BirdNET, Merlin, or eBird, or decide whether a record is reportable.

BirdNET, Merlin, and eBird are trademarks of their respective owners. This independent tool does not imply affiliation.

Your data, on your device

Cards are stored in this browser’s IndexedDB. Use Export backup before clearing browser storage or changing phones.

Keep the evidence.Then decide.

Evidence workbench

When and where

What you saw

What you heard

Candidate species

Reference recordings

Decision

Saved evidence cards

No filed cards yet

A two-minute evidence check

Write from memory first

Name alternatives

Compare lawful references

Log at the evidence level

Keep the evidence.
Then decide.