Merlin Bird ID by Cornell Lab

Merlin Bird ID by Cornell Lab

com.labs.merlinbirdid.app by Cornell Lab of Ornithology
4.9 (142,466)
5M+
BOOKS_AND_REFERENCE
102.7 MB
Updated Oct 2, 2025
View on Google Play

Screenshots

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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.

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.

What's New

- ID Tips: Enjoy bite-sized bits of birding joy as you listen! While running Sound ID, keep an eye out for short videos and photos that will help you identify and learn more about the birds you are hearing.
- Improved Search on Explore Species: Discover bird species near you, at different times of the year, and in any other location in the world with a new, expanded search feature!
- Sound ID now includes hundreds of new species in Central and South America, India, Taiwan, and Australia!

App Information

Version Name
3.1
Version Code
843
File Size
102.7 MB
Minimum OS
Android 7.0+
Target SDK
Android 33
Developer
Cornell Lab of Ornithology
Contact
Website
Content Rating
Everyone
Package Name
com.labs.merlinbirdid.app

Permissions Required

This app may request the following permissions:

  • find accounts on the device
  • add or remove accounts
  • approximate location (network-based)
  • precise location (GPS and network-based)
  • read phone status and identity
  • read the contents of your USB storage
  • modify or delete the contents of your USB storage
  • record audio
  • view Wi-Fi connections
  • view network connections
  • pair with Bluetooth devices
  • access Bluetooth settings
  • change network connectivity
  • connect and disconnect from Wi-Fi
  • full network access
  • run at startup
  • prevent device from sleeping
  • modify system settings
  • receive data from Internet

Recent Reviews

Jared Carroll
1.0★
Wants me to create an account to keep track of the birds I spot. Okay, whatever. Try to create an account; "no internet connection" wait a few, close the app and try again. Works. Try to add a bird, "no internet connection." This happens constantly. Why bother making an account if it won't let me register birds at all? Why can't it just locally cache everything? Absurd.
Shea
4.0★
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.
Sara Sanders
5.0★
This app is so neat! It detects even the faintest birds noises. Once it picks up a bird, it provides a picture and the option of more information. You can save your recordings, too. There's so much to this app that I haven't even explored yet. it's been so cool to see what birds are around me, especially when it detected 14 different species all at once.
Jen K.
5.0★
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
4.0★
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.
Zach Fedynich
3.0★
This app is awesome! One of my very few complaints about it currently is the map. When I go to mark a new bird found, the entire map is grayed out and cant see anything. And thats with my location on. I'm unable to see where I marked birds or any of my locations because you can't see this map at all. Please fix this and it's back to 5 stars!
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