Where birding
becomes a diary.
BirdTRX is a private birding field journal with bird song identification built in. Identify what you hear, and keep a diary you'll actually want to look back on.
What it does
A journal, not a checklist.
Most apps tell you what you heard, then forget it. BirdTRX keeps the whole moment — the bird, the place, the weather, the memory of the day.
Bird Song ID
Hear it, ID it, keep it.
Tap the microphone and BirdTRX identifies birds by song using BirdNET, right on your phone — no signal needed in the field. What you hear drops straight into your journal entry.
Rich diary entries
Every sighting becomes a memory.
Photos, voice notes and freely styled writing — each entry automatically stamped with the date, time, weather and location. A diary that's genuinely yours to keep.
Life list
Watch your life list grow.
Every sighting becomes a record — automatically. Tap any species to see every time and place you've encountered it, and export your records to eBird or BirdTrack.
See it in action
A morning's birding, kept.
Private by design
Your journal lives on your phone.
No account to create. No cloud lock-in. No advertising. BirdTRX runs bird song identification on your device — your recordings are never uploaded.
On-device ID
Bird song is identified on your phone, not on a server. It works with no signal.
No account needed
Start journaling straight away. Your data stays yours, always.
No ads, ever
A calm, quiet space to record your birding — nothing trying to sell to you.
Built on trusted science
Bird song identification is powered by BirdNET, from the K. Lisa Yang Center for Conservation Bioacoustics at the Cornell Lab of Ornithology. Birding sites and rarities are powered by eBird.
Start your birding journal.
Free to use, with a generous daily Bird Song ID and your full journal. No account, no ads.