Merlin Bird ID by Cornell Lab
Cornell Lab of Ornithology
- Compliance
- Law-aligned
- Category
- Books And Reference
- Download
- 10M+
- Safety
- 100% Safe
- Price
- Free
- Developer
- Cornell Lab of Ornithology
Screenshots
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. WHY YOU’LL LOVE MERLIN • 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 MACHINE LEARNING MAGIC • 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 eBird.org, 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. AMAZING CONTENT • 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.
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Merlin Bird ID by Cornell Lab keeps your titles ready on your phone.
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Advantages
- Your place is saved as you read.
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What users say
Justin Mowbray
Jan 26, 2026
I was really excited to use this app and start cataloging birds, however, the life list is not working properly. I cataloged three birds and they are not showing up on the life list. if this issue's fixed, I'd happily give it five stars. thank you for all the hard work you've done on this app! update: the app does show you your life list but only a day after, which seems odd. I do think another disappointing aspect of the app is that when you take a picture of a bird, it does not save it.
Shea
May 16, 2025
Great app! I love the info about birds, the pictures, the call recordings, etc! It's been so fun keeping an eye (and ear) out for the birds in my area, since it gets me off my phone & interacting with my surroundings for once! My criticisms: 1) I'm unable to see a list of birds that I've sighted for the DAY. All I'm able to do is see the TOTAL list of spotted birds. This affects my feelings of achievement. 2) There are too many steps to log a sighting each time. This affects motivation to log.
Melissa Blomquist
Apr 25, 2025
Super easy to navigate. Offers up very specific species based on my location and other identifying factors. Also has an easy to use and accurate photo ID option. It has bird calls and songs for each species, and I enjoy playing them to hear the birds respond. I have even used it on bird watching walks to call in the birds to take better pictures. If there was one thing I would change about it, I would add a feature to share the beautiful audio recordings I have captured.
Jen K.
May 10, 2025
I enjoy using this app. You can identify birds by sound, photo, or a visual description. It has photos of the birds in different stages, migration maps, and interesting details about each bird. You can download packs based on where you live or are traveling to. I live in the lower 48 but have also used it in Alaska and the Dominican Republic. I already have the European pack downloaded for my trip next month.
Gina D
May 1, 2025
I use it daily because it tells me what birds are in my yard. I love to learn about each bird and being able to listen to every bird's different calls and song's is great fun. My phone camera doesn't take good enough pictures, so can't get accurate I'd, but sound I'd works great. By listening, I've found birds I never knew where in my yard. My only complaint is once I joined e-bird, Merlin will no longer add birds to my life list. E-bird is way too complicated for me and I've tried every thing.
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