BirdTrace

**BirdTrace 4.0 — Introducing Offline Bird Sound Identification** BirdTrace 4.0 brings a new way to discover birds: by listening. **• NEW: Sound Identification with Google Perch 2.0** Record 10 seconds of birdsong and let BirdTrace identify possible bird species using on-device AI. No audio file selection or cloud recognition is required. **• Live Audio Waveform** Watch a real-time visualization of sound intensity while recording. BirdTrace automatically stops after 10 seconds and begins recognition. **• Two-Window Sound Analysis** Each recording is analyzed in two consecutive five-second segments. Results are combined to help identify bird vocalizations across the recording, including multiple possible species. **• Geographic and Seasonal Intelligence** Sound ID can use your location and the current month to refine bird candidates. Recognition remains available without location permission. **• Download Once, Identify Offline** The Perch 2.0 sound model is an optional download. Once installed, bird sound identification works without an internet connection. **• Privacy by Design** Audio is processed locally on your iPhone. Recordings are not uploaded or permanently saved. Our updated privacy policy explains microphone use and Sound ID data handling. **• Four Recognition Methods, One Screen** The Records screen now brings together AR Recognition (Beta), Camera Recognition, Photo Library Recognition and Sound Identification in a convenient 2×2 layout. All your favorite BirdTrace features remain, including 11,171 BirdDex entries, 52-week migration maps, 1,378 bilingual cultural stories, personal sightings and bird cards. Thank you for exploring the world of birds with BirdTrace!