About BirdLens
BirdLens is an independent bird identification app and multilingual field guide. Its goal is to help curious beginners and experienced observers move from a photo or sound to a better-informed species comparison.
How identification works
The mobile app analyzes a submitted photo or recording and returns likely species matches. A match is not a definitive scientific record: users should compare plumage, shape, call, habitat, range and season before reaching a conclusion.
Species information and review
Guide pages bring together common and scientific names, descriptive text, media, range material and observation features. We review product content and correct reported issues as the underlying catalogue evolves.
Known limitations
Accuracy depends on media quality, species similarity and geographic context. Rare birds, hybrids, juveniles and poor recordings are especially difficult. BirdLens is educational and should not replace expert review for research, conservation or official records.
Corrections and contact
Report incorrect names, images, descriptions or ranges through the developer support contact in the official App Store or Google Play listing. Include the species page URL.
What the guide covers
Species records may include identification text, taxonomy, range, migration, behavior, conservation information, photographs, calls, maps and seasonal observation features. Some fields are unavailable for some species; BirdLens leaves those sections out instead of presenting invented or generic text.
How to evaluate a result
Confidence should come from agreement between multiple clues: structure, plumage, voice, habitat, location and season. A clear result can still be wrong when species are very similar, media are poor, or a bird is outside its expected range. Unusual observations deserve independent review.
Responsible use
BirdLens is intended for learning and everyday observation. Keep a safe distance from wildlife, avoid approaching nests, respect protected areas and local rules, and limit playback of calls. Research, conservation decisions and official records should use appropriate expert and institutional review.