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Merlin Bird ID by twitchard

25 Comments

  • Post Author
    andsoitis
    Posted June 4, 2025 at 3:01 am

    Great app. One improvement I'd like is that if you play back sounds from the app you are allowed to cast the sound to an external speaker. I cannot.

  • Post Author
    NAHWheatCracker
    Posted June 4, 2025 at 3:44 am

    I was wondering what kind of bird was chirping outside my window this morning. I should have had this app.

  • Post Author
    gcr
    Posted June 4, 2025 at 3:53 am

    I'm friends with some of the researchers on the Sound ID portion of this app! The team's gone to great lengths to make sure the machine learning models and evals are solid.

    Under the hood, Sound ID is a great example of how "domain-expert-driven" careful research can give more reliable results than just feeding in data and hoping for the best.

  • Post Author
    AnotherGoodName
    Posted June 4, 2025 at 4:09 am

    In general as a bird watcher i’ve been extremely impressed by this tech. I generally trust it.

    There’s only a couple of times i’ve been sceptical of it’s id and thats where there’s similar species in the area. Eg. I’m not convinced there really is a purple finch where i live when all i see is house finches all day. But i could be wrong too! It’s proven itself enough that i’m not ready to call it wrong on that one.

  • Post Author
    Mossy9
    Posted June 4, 2025 at 4:20 am

    I've been birdwatching (birding?) actively for a few years now, but only this year did I start using these sound identifiers. What a boon it's been! I've already spotted over a dozen new species by sound alone, and also learned to identify some of them by myself.

    It really has opened up a whole new venue of enjoying this hobby. At least here, machine learning/AI has a clear, positive impact.

  • Post Author
    jedc
    Posted June 4, 2025 at 4:36 am

    I was visiting Yosemite a year-ish ago and a guide recommended this app and it was fantastic. My kids also loved getting the real-time info on what they were hearing, and trying to spot the various kinds of birds.

    Strongly recommend it (though admittedly, I don't use it often in suburbia)

  • Post Author
    waetsch
    Posted June 4, 2025 at 4:38 am

    Love this app.

    I never thought I would ever actively watch for birds when I hear them. Or that I would be able to say "this is clearly a Wren". Or that I have a my favourite bird (Wren as well btw).

  • Post Author
    CobrastanJorji
    Posted June 4, 2025 at 4:45 am

    I won Merlin once. I didn't know you could win the game, but I was relaxing in my backyard and suddenly it notified me that I had found the merlin. I was so excited. I hadn't known that a merlin was a kind of bird.

    I do wonder how accurate Merlin is. I certainly can't tell the bird calls apart, and I don't usually spot the bird in question, so it could just be lying to me half the time, and I'd probably never notice. But I sure do love the app as an amateur bird-liker.

  • Post Author
    temp0826
    Posted June 4, 2025 at 4:50 am

    I love this app!! This and iSeek (plant/animal identification via photos) are a blast. Lived in the jungle in souteast Mexico the last couple years and I'm constantly reaching for these.

  • Post Author
    OptionOfT
    Posted June 4, 2025 at 4:53 am

    We have a Mockingbird in our backyard (or more precisely, we live in his/her territory) that impersonates a Gila woodpecker. We were able to record it. Playing back the video and using Bird ID actually shows it as a Gila Woodpecker.

  • Post Author
    hydroweaver87
    Posted June 4, 2025 at 4:56 am

    iNaturalist is yet another nice app

  • Post Author
    pixelesque
    Posted June 4, 2025 at 5:06 am

    Note that the recent iOS update seems to have introduced a bug whereby even after stopping recording, the app in the background will continue to use SIGNIFICANT battery life, so I've needed to start force-closing the app after using it.

  • Post Author
    WCSTombs
    Posted June 4, 2025 at 5:11 am

    I'm a little disappointed that the photo on the landing page isn't, you know, a merlin [1].

    [1] https://www.allaboutbirds.org/guide/merlin/id

  • Post Author
    ainiriand
    Posted June 4, 2025 at 5:24 am

    I identified a https://en.wikipedia.org/wiki/Red-whiskered_bulbul in our garden thanks to this amazing app! Me and my wife love birding and at the end of the year we compare our scores, it is playful entertainment. And we are introducing our daughter to it, it is so cute when she identifies one!

  • Post Author
    podlp
    Posted June 4, 2025 at 5:32 am

    Merlin is far less capable in developing countries either because there’s less available crowdsourced data, or it’s intentionally suppressed to reduce its use by unskilled poachers

  • Post Author
    michaelmior
    Posted June 4, 2025 at 5:32 am

    BirdNET-PI[0] may be of interest to this crowd. It uses a Raspberry Pi with a microphone to identify birds continuously based on their calls.

    [0] https://www.birdweather.com/birdnetpi

  • Post Author
    sgarman
    Posted June 4, 2025 at 5:33 am

    I was thinking of trying to run this at home: https://github.com/tphakala/birdnet-go

  • Post Author
    camillomiller
    Posted June 4, 2025 at 6:04 am

    Used it a couple of nights ago to find out that here in Berlin we have a massive Nightingale population

  • Post Author
    urban_winter
    Posted June 4, 2025 at 6:07 am

    Fantastic app. My wife and I are gradually becoming able to recognise more and more birds by their call. This is great because the human ear is better than the app at rejecting environmental noise – so we can spot birds by their call even close to a noisy road when the app cannot.

    The app, at least on my Pixel 6, struggles with very high frequency calls – e.g. long-tailed tits.

    My best spot yet? A nightingale in Wimbledon.

  • Post Author
    eichin
    Posted June 4, 2025 at 6:12 am

    Of interest:

    > Sound ID is trained on audio recordings that are first converted to visual representations (spectrograms), then analyzed using computer vision tools similar to those that power Photo ID.

    Yeah, the spectrogram scrolling by at the top isn't just a cute gimmick, that's actually how the recognition works…

  • Post Author
    rjim86
    Posted June 4, 2025 at 6:29 am

    I recently found this app and I'm loving it. I actively use this when i go for walk, hike and camping. Thanks team for the amazing work

  • Post Author
    leland
    Posted June 4, 2025 at 6:40 am

    Wonderful app! Collecting birds is great fun and another fun use is to try and fool it by making my own bird noises and see if I can pass. Red-tailed hawk is my speciality. I can fool it ≈50% of the time once I’m warmed up.

  • Post Author
    Arbortheus
    Posted June 4, 2025 at 6:47 am

    I’ve used this app for a while, it’s really good and I’d highly recommend it if you want to learn more about the birds where you live in an accessible way.

  • Post Author
    barrenko
    Posted June 4, 2025 at 6:50 am

    Beautiful functional website, I got hooked from that last woodpecker post that ended up on HN.

  • Post Author
    lloydatkinson
    Posted June 4, 2025 at 7:18 am

    It’s great to see it works globally and not just in America

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