
What's new in Merlin Bird ID by Cornell Lab 3.6
Get ready for bird migration with better ID tools and flexible downloads!
Sound ID update: Merlin is now more responsive, so you'll see more IDs as Merlin listens to the birds around you.
Photo ID update: Trained in bird ID with over 6 million practice photos, Merlin can identify your photos better now than ever before.
Smaller and more flexible downloads: Download bird info as you go, or download information for a whole region at once for offline use!
Happy birding!
About Merlin Bird ID by Cornell Lab 3.6
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.

Version:3.6
Uploaded:April 7, 2025 at 12:49PM UTC
File size:189.33 MB
Downloads:41
Version:3.5.2
Uploaded:February 5, 2025 at 2:10PM UTC
File size:153.38 MB
Downloads:84
Version:3.5.1
Uploaded:December 10, 2024 at 12:22AM UTC
File size:153.38 MB
Downloads:36
Version:3.1.2
Uploaded:July 10, 2024 at 12:12PM UTC
File size:578.31 MB
Downloads:198
Version:3.1.1
Uploaded:June 13, 2024 at 5:21PM UTC
File size:578.3 MB
Downloads:57
Version:3.1
Uploaded:May 17, 2024 at 11:43PM UTC
File size:578.29 MB
Downloads:101
Version:3.0.3
Uploaded:January 7, 2024 at 2:29PM UTC
File size:573.56 MB
Downloads:277
Version:3.0.2
Uploaded:November 27, 2023 at 1:25PM UTC
File size:551.74 MB
Downloads:126
Version:3.0.1
Uploaded:November 11, 2023 at 12:59PM UTC
File size:551.73 MB
Downloads:27
Version:3.0
Uploaded:July 7, 2023 at 6:35PM UTC
File size:550.74 MB
Downloads:173