Merlin Bird ID by Cornell Lab

96.4K reviews
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About this app

What's that bird? Ask Merlin—the world’s leading app for birds. Just like magic, Merlin Bird ID will help you solve the mystery.

Merlin Bird ID helps you identify birds you see and hear. Merlin is unlike any other bird app—it's powered by eBird, the world’s largest database of bird sightings, sounds, and photos.

Merlin offers four fun ways to identify birds. Answer a few simple questions, upload a photo, record a singing bird, or explore birds in a region.

Whether you’re curious about a bird you’ve seen once or you’re hoping to identify every bird you can find, the answers are waiting for you with this free app from the renowned Cornell Lab of Ornithology.

• Expert ID tips, range maps, photos, and sounds help you learn about the birds you spot and build birding skills.
• Discover a new bird species each day with your own personalized Bird of the Day
• Get customized lists of birds you can find where you live or travel - anywhere in the world!
• Keep track of your sightings—build your personal list of the birds you find

• Powered by Visipedia, Merlin Sound ID and Photo ID uses machine learning to identify birds in photos and sounds. Merlin learns to recognize bird species based on training sets of millions of photos and sounds collected by birders at, archived in the Macaulay Library at the Cornell Lab of Ornithology.
• Merlin delivers the most accurate results thanks to experienced birders, who curate and annotate sightings, photos, and sounds, who are the true magic behind Merlin.

• Choose bird packs that contain photos, songs, and calls, and identification help for anywhere in the world, including Mexico, Costa Rica, South America, Europe, Africa, the Middle East, India, Australia, Korea, Japan, China, and more.

The Cornell Lab of Ornithology’s mission is to interpret and conserve the Earth’s biological diversity through research, education, and citizen science focused on birds and nature. We are able to offer Merlin for free thanks to the generosity of Cornell Lab members, supporters, and citizen-science contributors.
Updated on
Jul 8, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, App activity and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

94.8K reviews
Kypfer Cordts
July 16, 2024
Still an amazing app, but the new update made it less user friendly. It no longer remembers default settings, like sorting species by family (why would they remove that???). It is also annoying having to manually re-enter location and time. Normally, that wouldn't be a problem. But it is a mild irritation when you are planning upcoming surveys in a distant location. Otherwise, the new update is good and the app is still wonderful.
2 people found this review helpful
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Jeff Nelson
July 15, 2024
Old app was a 5. I gave them a $125 donation I was so amazed. I have used this app throughout the US, Asia & Europe. This version is painful! The audio ID is still good. The Explore won't work long enough to allow me to ID a bird. And then it switched to some foreign language & there was no return. Hope you have better luck. I'm reinstalling & have lost all the time of reinstalling all the bird packs I lost.
1 person found this review helpful
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