Merlin Bird ID by Cornell Lab

Merlin Bird ID by Cornell Lab Education

Merlin Bird ID by Cornell Lab

Merlin Bird ID by Cornell Lab
Merlin Bird ID by Cornell Lab|Download the iPhone APP from AppStore

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.
• Customized lists of birds to find where you live or travel
• Merlin was created by bird experts for everyone.
• Merlin is global—look up any bird at any location.
• Keep track of your sightings—linked to eBird, a global database of more than 1 billion bird observations!

• Powered by Visipedia, Merlin Sound ID and Photo ID uses deep 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.
• It’s available in your language. Merlin is available in English, Spanish, Portuguese, French, Hebrew, German, Japanese, Korean, Turkish, Simplified Chinese, and Traditional Chinese.

The Cornell Lab of Ornithology’s goal is to help you and millions of others to learn about birds. Our nonprofit mission to improve the understanding and protection of birds and nature is made possible by the generosity of Cornell Lab members, supporters, and citizen-science contributors.



Download the[Merlin Bird ID by Cornell Lab]@iPhone App

Merlin Bird ID by Cornell Lab|Download the iPhone APP from AppStore

Evaluation at the itunes store

Evaluation of iPhone App [Merlin Bird ID by Cornell Lab] at itunes store

  • newest version:4.8 out of 5 stars (4.8 / 5)4.84189
  • All versions:4.8 out of 5 stars (4.8 / 5)4.8

Number of people evaluated:41953



Screenshots of iPhone Apps [Merlin Bird ID by Cornell Lab]

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(c)Cornell University

People reviews

Impression and review of people to iPhone App [Merlin Bird ID by Cornell Lab]!

  • Sound ID
    by Bugsz MD on July 6, 2022 at 11:38 am

    Sound ID is a real game changer! Now novice birders ca become very good. Especially helpful during migration time noting birds that you are not used to hearing.

  • Use the App Understand Birds
    by PauletteT on July 6, 2022 at 10:03 am

    I adore this app and use it almost every day. The sound ID tells you exactly the birds it is recording; that is how I started birding to begin with. My granddaughter and I first used it to figure out what crow-like bird was over the water. Choose day, place size as App call for, next screen, colors of the birds; our birds were Fish Crows; never knew there were fish crows. Get EBird too

  • Wonderful app
    by Alan97210 on July 6, 2022 at 12:45 am

    Sound ID remarkably good. Easy to use. Powerful. Especially useful in forests with heavy canopy cover

  • Great app
    by Great offline capability on July 6, 2022 at 12:42 am

    Adds a new dimension to bird watching using your ears. Awesome.

  • A Hearing Aid for Birders of All Ages
    by MWH Goshawk - Princeton on July 5, 2022 at 7:12 pm

    eBIRDERS are obliged to take photos or record birds to prove their identifications. It’s much less expensive to record eBIRD Voice ID. The challenge is background noise whether traffic, wind, waves or other constant or surging noise makes it hard for Merlin. But Merlin is getting smarter quickly. The location “packs” give eBird a limited set of expected species. It would be great if this was made more specific to eBird hotspots so it could reference date and reported species at specific GPS points. Many of us have problems with frequencies. Cedar waxwings and other high pitched birds are hard to hear for us, but also for Merlin. When there is a choir of birds the lowest volume bird is often not heard. When I enter a habitat I often turn voice ID on and see what Merlin finds. This can help focus my search. But be careful, 20-30 % of the birds in Merlin’s report may be mistaken identities.

  • New to birding- this app is amazing
    by Cheerios on July 5, 2022 at 7:08 pm

    Extremely helpful and powerful tool as a new birder. Sound ids are fantastic for getting a shortlist of birds to look for

  • Best app I’ve ever had
    by imposter number 284;#73 on July 5, 2022 at 6:33 pm

    So I just got this and it’s amazinf. That show my excitement for the best app ever but how can I tell if it’s rare I’d like to know

  • Great
    by Ava Grace Fadley-Peterson on July 5, 2022 at 5:58 pm

    I am a bird watcher and I can’t believe that this app helped me find a rare bird

  • Great app!
    by meod on July 5, 2022 at 5:20 pm

    I never knew haw many birds lived around me!

  • Great-way-to-understanding-your-world
    by Chahta-1 on July 5, 2022 at 3:06 pm

    The sound ID is amazing!! It opened a whole new world for me!! Love this app.

  • Great app!
    by Austin biker on July 5, 2022 at 1:26 pm

    I use it all the time. I like that when using sound ID, it highlights birds as they sound. This makes it easier to ID a single bird in a cacophony.

  • Love the Sound ID
    by SuzySanMar on July 5, 2022 at 12:21 pm

    Love the sound ID feature which has identified more than 20 burns in my yard !

  • Best Bird App Out There
    by HorseyFacr on July 5, 2022 at 3:44 am

    Perfect for identifying birds. I’ve used the sound ID feature most. I can walk through the park and know I’m listening to a catbird, or identify an extended family of American Redstarts. I’d never have know that without Merlin.

  • Great app
    by engund on July 5, 2022 at 12:09 am

    The sound id is magical.

  • Remarkable
    by I can be a grouch, bit... on July 4, 2022 at 10:05 pm

    This sosftware is amazing. We live in a wooded area at the very edge of a city in Colorado. If you go outside a day break, there are a dozen birds singing. To my surprise, Marlin hears and distinguishes each one, given me a listing of the birds around, and lighting up the name of each bird as it hears it’s song. I’m not really a bird guy, but this is so cool.

  • Fits the need
    by EdonETrade on July 4, 2022 at 7:11 pm

    Have been using Merlin daily for a month. The audio ID feature has shown what I have not been aware. Also trains my ear for birdID. Used all the time both California and Scotland. Works even in noisy environments.

  • Annoying
    by LC1167 on July 4, 2022 at 6:42 pm

    It keeps telling me to verify my email address but they never send the email

  • Superb
    by Thembi B on July 4, 2022 at 5:24 pm

    Everything you can ask for and more. Bird call identification is fantastic.

  • Birdwatching from my yard
    by musskriss on July 4, 2022 at 3:55 pm

    Merlin App is so informative and engaging. It has enhanced our family life in many ways.

  • Love Merlin!
    by Herefred on July 4, 2022 at 2:45 pm

    I have been able to ID elusive birds by their songs and calls, plus I have enjoyed hearing and identifying the many different songs and calls of familiar birds, the American robin, for example.

  • Bravo Zulu
    by Nondeterministic on July 4, 2022 at 1:39 pm

    This is the real deal, folks - not some fly by night operation.

  • Love this app!
    by Miami Jumper on July 4, 2022 at 11:58 am

    I’m new to birding and use it often with eBird. I highly recommend it.

  • Potential but currently a mess
    by erbizzle9311 on July 4, 2022 at 12:34 am

    The app is ok but it seems to think half the time I open it that I haven’t confirmed my account. But I confirmed it on day one. I even try to send a new confirmation email to my account and it never comes- and I checked spam. Merlin can’t help or answer why it does this and just keeps saying to resend the email. When it does miraculously let me in, it’s somewhat decent. It can’t think of more than 4-5 birds if you try to search a bird with criteria like size color and what you saw it doing. sound ID pretty accurate.

  • Pocket Birder
    by Loganiii on July 3, 2022 at 11:02 pm

    Like an ornithologist in your pocket. It tells me what’s around, tells me what I’m hearing. Astonishingly capable and accurate. As my skills improve, I can attest this app has been right all along… amazing. Never leave home without it.

  • Loads of fun!
    by amelia525 on July 3, 2022 at 10:04 pm

    I use this app all the time, in my backyard, in nature reserves, in new places for me. It works great.

  • Love this app
    by SuBudj on July 3, 2022 at 6:03 pm

    I’m a novice and want to get better at identifying birds in our woods and backyard. I love capturing the calls and then have Merlin identify them for me. I’m getting better at recognizing bird calls thanks to Merlin app.

  • Amazing!
    by Kg987643 on July 3, 2022 at 5:36 pm

    I live on 5 wooded acres, surrounded by old wood maples and beech trees and a few old oaks. I have bird feeders up, but I know I don’t a lot of our “bug” eating birds at feeder. Our family lives sitting out in our patio/deck and just laid ten to nature. There are birds in the woods I don’t see but hear. This app is great! I found out there are warblers, and wood thrushes, an occasional hawk, different woodpeckers. And they all were recognized by there song. This app is wonderful.

  • Birds of the Southeast
    by vaughn334 on July 3, 2022 at 3:29 pm

    The app identifies birds by their songs that I’ve never or rarely seen. It often identifies upwards of 20 different birds. It works amazingly.

  • Physician NY. NJ
    by Happy in HP on July 3, 2022 at 2:39 pm

    My family and I love this app! Our backyard is bird friendly and we can spend free time listening and watching birds in our feeders and trees. The Cornell app has been both educational and a lot of fun. I ve shown it to many friends and family and all have downloaded it. I’m very impressed by its accuracy and how it hones in on birds and not ambient noise. And yes we will continue to support the ornithology lab with donations. Thank you for this wonderful tool!

  • Excellent ap!!
    by [email protected] on July 3, 2022 at 2:36 pm

    I just started using the Sound ID and I had no idea I had so many more kinds of birds which I never even see! And even some rare ones for my area! I installed the US and Canada package (free) and it gives you pictures and recordings and of each bird’s sound and more. I thought the photo ID was great but the sound ID is amazing! Thank you, Cornell Lab, for providing this awesome ap and for free! I would’ve never loaded it if had a cost. I’m so happy to use it every day. It’s addicting!

  • Merlin and its sound ID
    by birdcrazy1054 on July 3, 2022 at 1:12 pm

    Merlin’s sound ID is so much fun! I like to turn Merlin on during the dawn chorus and watch the bird names pop up. Sure, I would never rely on it fully for a positive ID, but it has alerted us to some birds we didn’t know we had and were able later to verify by sight.

  • Use it all the time!
    by GlennB 724 on July 3, 2022 at 12:55 pm

    I’m a casual bird enthusiast who enjoys sitting on my deck listening to and watching the many birds here. One day I heard a curious call new to me and wanted to ID it. I found this app and being familiar with the Cornell bird lab, thought I would give it a try. I was surprised how well it worked an how many different species it can detect just using my iphone. IT IS GREAT. EASY EFFECTIVE AND FUN. What more could you ask for!

  • Recent update
    by Jamais Vu on July 3, 2022 at 12:40 pm

    Normally this would be a five star, but the most recent update, under explore, only about 20 birds show up. Also for ID’ingIf I go into the pack list it shows 716. No filters are selected, everything is just gone. it’s the same for the ID as well. I tried ID’ing a robin just to check and see how it was working using “robin sized” brown, white, orange, in the trees, and got “barn swallow” as the only option. Then I tried another and barn swallow is literally the only bird that comes up as an option for anything I try. Please fix this bug!

  • Meditative
    by P Suzi on July 3, 2022 at 12:23 pm

    I record for 10 minutes every morning to see what’s out there. I live in west central Florida with an amazing amount of different feathered friends. I love birds, the are by far my favorite species. This app makes it so simple to identify them and learn about Gods wonderful creatures. Thank you Merlin.

  • Sound Recording Awesome
    by DouglasEDollar on July 3, 2022 at 11:03 am

    This feature can be used when bird’s hard to find and gives you an idea of what you’re looking for. I used it on trip to North West. I’m from Florida. App was invaluable!

  • Super beneficial to birders!
    by 0ELIJAH0 on July 3, 2022 at 5:21 am

    Been birding for a couple of years now and Merlin is the best birding app I’ve ever found! I super recommended this if your passionate about birds or just curious what bird is in your backyard. Loads of fun, extremely helpful!!

  • My Favorite App
    by Ratbones923 on July 3, 2022 at 2:38 am

    I feel like Dr. Dolittle being able to talk to the animals. I’m sitting outside and doing calls and response with multiple song sparrows. The app helped identify the bird for me first and next I’m able to play different calls to bring the birds even closer to me. I’ve identified some birds by sight, but most thorough the recording that the app captures. This is definitely the favorite app on my phone and it’s not even close.

  • Our joy
    by PatriciaJ on July 2, 2022 at 11:00 pm

    We love this app.

  • Great App… but missing Southeast Asia
    by Hog Town Dad on July 2, 2022 at 9:53 pm

    I love this app and it’s great for bird songs and quick ids. I use it often. The app describes the birds well. They don’t give the greatest size comparison and habitat description for a lot of species. I find that a good field guide is a lot more helpful for this. As well they haven’t come out with a Southeast Asia bird pack.

  • Bravo!
    by BillG-VT on July 2, 2022 at 9:40 pm

    This app is very good and easy to use. I have been using it since mid-March 2022. I especially like the sound ID mode, because one can learn the songs of common backyard birds, and also identify birds calling in the woods, meadows, and other remote places. Those birds you may or may not see. The scrolling sound graph is also very interesting and useful. Now a suggestion for future improvement. I have noticed that many birds in northern Vermont make their own unique songs. For example our cardinals make a incredible variety of songs, all different than the recordings offered on the app, including those made in neighboring New York state. To be sure they are “cardinal like” songs, but nevertheless are unique to our region. The tufted titmouse likewise. Even less common birds such as the hermit thrush, our state bird, make their own version of the hermit thrush song. This may seem bizarre and hard to believe, but it is a true and (so far) frequent occurrence, when I compare my recordings to those offered as examples. Given the local variation in bird songs, it would be helpful to allow people to upload their recordings. Those recordings could be vetted for quality and usefulness (e.g. exact duplicates need not be used), then be offered on the app, maybe in an “amateur” section. My recordings are all done by cell phone, sometimes have stray sounds, and often more than one bird. But they still might be useful to someone, and it certainly would be interesting to have an expert evaluate the sounds and verify the ID(s). I am not a bird expert, but would venture a guess that a collection of recordings from one’s own state (or the state one is visiting) would be the most accurate, and the most helpful. Fortunately the app is typically able to identify a bird, but its speed and accuracy would likely be improved if more local audio recordings were in its database. And more importantly, local recordings would reassure the user that indeed the correct bird has been identified. Overall a fun and useful app, highly recommended. Thank you Cornell for offering it to the public, free of charge!

  • Great App - even used in other countries
    by GBBluebird on July 2, 2022 at 9:10 pm


  • Crashes with location changes
    by Jlrach on July 2, 2022 at 8:12 pm

    After using this app for many years, the last few updates have made it difficult to enjoy. Now if I go into explore birds, and try change to another location or a different date, the entire app locks up and I have to force close it. I haven’t been able to successfully change it for months. This has occurred since the last two updates. Would love for it to work again because it’s a wonderful app!

  • Love it!! So EZ!
    by footwhisperer on July 2, 2022 at 8:10 pm

    Just love how easy it is to find out what birds I see, and has got me to looking more carefully so I am Able to IF more. Enjoyed participating in the worldwide bird count it recommended I’m advance to join.

  • A Great Birding Tool
    by JP Kissee on July 2, 2022 at 5:52 pm

    In real time you sit outside and listen for birds like usual. Then as your listening with the app, you and the app are identifying the song at the same time, quickly, efficiently and effectively. It seams to be spot on. Watch out for the mimic birds like Northern Mockingbird and Brown Thrasher fooling the app and you with their mastery of mimicry. We love using it everyday and our record is 34 species in 18 minutes in late May 2022, Haw River NC

  • Read before downloading
    by MagnoliaFlowerss on July 2, 2022 at 5:13 pm

    I got Merlin Bird ID about 2 weeks ago, it’s a pretty cool app that you can use in your backyard to find out what birds there are and when you find a bird you can download that birds region and hear that bird’s call. But every once and a while the sound ID is wrong, and I know you might be thinking, “Well maybe there’s a bird that you didn’t know was there.” But I’m sure that there’s not a bird from the ocean shore in my backyard. It’s a nice app but it has its flaws ( as all apps do) I would recommend getting this if your checking out what birds you can find but maybe double check because the results aren’t 100% accurate.

  • Merlin
    by DC Hahn on July 2, 2022 at 4:14 pm

    Life changing! A phenomenal creation. So enjoyable . And good for publicizing the wonder of birds. Thank you!!

  • Love Merlin
    by {!Celtish!} on July 2, 2022 at 3:58 pm

    I’ve been using this app for years and it’s helped me know who I hear and see out there! Vacations are a great time to expand my ‘lifers’!

  • Very fast, accurate, fun
    by Crwik on July 2, 2022 at 3:21 pm

    We’ve enjoyed using Merlin for several years in MN, WI, UT, Hawaii, Maine. All the ID modes have worked great—5 questions, sound, and photo.

  • Home owner…SW Michigan
    by Dig-Etal on July 2, 2022 at 2:50 pm

    Love and appreciate this bird app. Professionally done and user friendly. Variety of bird songs and photos are astonishing. Works as you visit new locations. Wouldn’t be without it !

  • Sooooo great!
    by Craig-A-Mouse on July 2, 2022 at 2:38 pm

    This a perfect accompaniment to all of your bird watching events. I downloaded the pack of birds for the western united states, since I live there. You can ID birds with sound recordings, which lists the birds it hears and then highlights them every time it’s heard so you can pinpoint what your hearing. There re multiple clear pictures of every bird, which makes identifying super simple. You can also search the database by providing a few basic details to narrow down what you might be looking at. You can also take a picture from your phone and load it to identify using your own picture. I love, love, love that I can set up an account and keep track of my life list right there in the app. This has been so much fun to use, from my back yard to vacations, and I can’t wait to see or hear something new so I can open and use this wonderful app!

Change log

Update history of iPhone App [Merlin Bird ID by Cornell Lab]

• Layout tweaks for smaller screens to show more results
• The latest and greatest Sound ID model!
• Video support for Sound ID – you can now open/Import videos and Sound ID will import just the audio and identify the singing birds
(c)Cornell University


iPhone App [Merlin Bird ID by Cornell Lab] Other details

  • Sales maker:
    Cornell University
  • Release date:
  • Version:2.1.1
  • OS:iOS,iPhone,iPad
  • Price:Free


Download the[Merlin Bird ID by Cornell Lab]@iPhone App

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Merlin Bird ID by Cornell Lab|Download the iPhone APP from AppStore


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