Merlin Bird ID
Merlin Bird ID: A free mobile app for identifying birds by image, sound, or guided observations. Ranked #3 of 49 in Visual Identification Apps by our editors (9.2/10); pricing: Free plan; best for bird identification by photo or sound.
At a glance
- Editor score9.2 / 10
- PricingFree plan
- Best forBird identification by photo or sound
- Free planYes
- Paid fromNone
- Identification scopeWildlife
- Facts checked3 Oct 2026
Where it wins
- Photo ID and Sound ID can work offline with regional downloads.
- Bird ID Wizard narrows matches using observation details.
- Life List can sync with eBird and save identified birds.
Where it doesn't
- Focused on birds rather than broader wildlife identification.
- Available on mobile for iOS and Android, not other platforms.
- Saving observations requires an internet connection.
Our verdict on Merlin Bird ID
Merlin Bird ID is a free mobile app from the Cornell Lab of Ornithology for bird watchers and outdoor enthusiasts who want help identifying birds. It suggests matches from photos and songs or calls, and its step-by-step Bird ID Wizard uses observations to guide identification. Bird lists can be filtered by location and time of year, supporting exploration before or during time outdoors.
Offline use is a defining strength: Photo ID and Sound ID work offline, and users can download regional bird information for offline use. That makes Merlin useful in areas with limited connectivity, provided the relevant regional information has been downloaded. Its scope remains specific to birds, so people looking for identification across wildlife categories should consider a broader tool instead.
For ongoing birding, Merlin saves identified birds to a Life List, which can sync with eBird. Community-contributed photos, songs, and calls add examples to explore alongside identification results. The app is free and available for iOS and Android; saving observations requires an internet connection. Birders who want photo or sound identification, guided questions, and a personal record should find its feature set well matched to that purpose. It is less suitable for desktop use or anyone needing offline observation saving.
Merlin Bird ID pricing
Merlin Bird ID fact sheet
| Free plan | Yes |
|---|---|
| Paid from | None |
| Identification scope | Wildlife |
| Offline identification | Yes |
| Photo health diagnosis | Not verified |
| Mobile platforms | Both |
| Saved identifications | Yes |
| Community features | Yes |
| Deployment | Mobile |
| Platforms | iOS, Android |
| Support | Docs |
| Built for | Solo, Small business (editorial estimate) |
| Integrations | 1 integrations: eBird |
| Pricing | Free plan |
| Website | merlin.allaboutbirds.org |
| Facts checked | 3 Oct 2026 |
Merlin Bird ID integrations
Merlin Bird ID lists 1 integrations on its own site.
- eBird
Alternatives to Merlin Bird ID
- Pl@ntNetPhoto-based plant identification with offline mobile models and community review.9.4
- Seek by iNaturalistA free mobile app for offline, camera-based identification of plants, animals, and fungi.9.3
- ObsIdentifyA free mobile app for identifying European wildlife and recording observations.9.1
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Merlin Bird ID vs the competition
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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