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Merlin Bird ID icon

Merlin Bird ID

by Cornell Lab

Cornell Lab of Ornithology
4.2
  • 10.0
    2 Reviews
  • Oct 6, 2026
    Update date
  • Everyone
  • Android OS

About Merlin Bird ID

Bernadine Wisoky avatar
Reviewed byBernadine WisokyContent Editor

Merlin Bird ID is a bird identification app that helps you identify birds by sight or sound.

Merlin Bird ID supports people who notice a bird nearby but do not know its name. It gives clear identification help for walks, garden watching, travel, and field trips. In addition, it brings together bird photos, sounds, maps, and regional guides so you can compare what you saw or heard with likely species. For users planning a Merlin Bird ID download, the app is designed as a practical field tool for both new and experienced bird watchers.


Main Merlin Bird ID Features

Identify birds by sound

Merlin Bird ID can listen to bird songs and calls through Sound ID while you record on your phone. As the recording continues, it shows likely matches so you can follow changes in the sound around you. This is useful when the bird is hidden in trees, far away, or moving too quickly to see clearly.

Check birds from photos

You can use Photo ID when you have a snapshot of a bird or an image saved in your camera roll. Merlin Bird ID looks at the photo and offers a short list of possible species. After that, you can compare the results with reference photos and details inside the app before saving the sighting.

Use simple questions for bird ID

Merlin Bird ID also includes a Bird ID Wizard for times when you do not have a clear photo or sound recording. You answer simple questions about the bird, such as its size, color, location, and behavior. Then the app suggests birds that match your answers, which helps narrow down common options in the area.

Learn with photos, maps, and sounds

Merlin Bird ID gives each bird more context through expert ID tips, range maps, photos, songs, and calls. These details help you check whether a suggested bird fits what you observed. Over time, this makes it easier to notice field marks, compare similar birds, and understand which species are likely nearby.

Use bird packs and save sightings

You can download bird packs for regions you plan to visit, which supports offline use for Sound ID, Photo ID, and local bird information. This matters when you are outside without a steady connection. Merlin Bird ID also lets you save identified birds to a personal life list, so your sightings remain organized after each trip.


What to Know About Merlin Bird ID

Merlin Bird ID comes from the Cornell Lab of Ornithology and uses information connected with eBird and the Macaulay Library. This means the app draws on bird observations, photos, sounds, expert input, and machine learning to suggest possible identifications. However, results should still be checked against the bird’s location, season, sound, and appearance, especially when several similar species live in the same area.

The Merlin Bird ID app is also useful as a learning tool, not only as a quick answer tool. If you are new to bird watching, you can use it to explore likely birds around your location before going outside. If you already watch birds often, the app can help compare sounds, review range maps, and keep a record of species you have identified.


Using Merlin Bird ID Outdoors

Before going into the field, it helps to prepare Merlin Bird ID latest version with the bird pack for your region. This lets you use the app more smoothly when you are walking, traveling, or birding in places with limited internet access.

  1. Open Merlin Bird ID on your Android phone and choose the region or bird pack that matches where you are watching birds.
  2. When you hear a bird, start Sound ID and let the phone record the song or call while you stay as still as possible.
  3. If you see the bird clearly, take a photo or choose an image from your camera roll so Photo ID can suggest possible matches.
  4. When there is no clear sound or photo, answer the Bird ID Wizard questions about size, color, place, and behavior.
  5. Review the suggested birds with photos, sounds, maps, and ID tips, then save the confirmed bird to your life list if it matches your sighting.


Start Identifying Birds with Merlin Bird ID

Merlin Bird ID gives Android users a clear way to identify birds by sound, photo, simple questions, and regional bird information. If you want a field focused birding tool, download Merlin Bird ID and prepare the right bird packs before your next outdoor trip.

Official information is available from the developer website:

  • Website: https://merlin.allaboutbirds.org/
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Additional APP Information

Latest Version

4.2

Uploaded by

Nailah

Requires Android

Available on

Content Rating

Everyone

What's New in the Latest Version 4.2

Last updated on Oct 6, 2026

What's new in 4.2:
Identifying birds with a picture is easier than ever. No need to crop your picture - simply upload your photo, add the location, and we'll take care of the rest.
Bug fixes and behind-the-scenes improvements

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Merlin Bird ID Screenshots

Merlin Bird ID posterMerlin Bird ID screenshot 1Merlin Bird ID screenshot 2Merlin Bird ID screenshot 3Merlin Bird ID screenshot 4Merlin Bird ID screenshot 5Merlin Bird ID screenshot 6Merlin Bird ID screenshot 7

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