# Merlin Bird ID

43 Hacker News commenters recommended Merlin Bird ID and 5 criticized it, November 2025 to November 2026. It was recommended in 10 of 13 months. It meets the Hacker Approved badge rule.

**Verdict:** Free app that identifies birds from their songs and around you, working well across many countries; critics say sound identification gives frequent false positives in noisy places.

## Why people recommend it

- Identifies birds by their songs (5 comments): "I'm still impressed by Merlin's sound identification, it continues to inspire me." ([source](https://news.ycombinator.com/item?id=49006999)) "Merlin can do sounds which is much much more useful for birds." ([source](https://news.ycombinator.com/item?id=50243331)) "I use iNaturalist (and Merlin for birdsong recognition)." ([source](https://news.ycombinator.com/item?id=49194262))
- Accurate, useful identifications on walks (4 comments): "identifies the birds around me on walks. I can walk around and get mostly accurate identifications" ([source](https://news.ycombinator.com/item?id=49347691)) "I use Merlin Bird ID all the time. I found it good across many countries." ([source](https://news.ycombinator.com/item?id=49512736)) "I just tried it and it worked like magic." ([source](https://news.ycombinator.com/item?id=49008007))
- Got people into birding (4 comments): "Merlin got me into birding, and I've found this to be true, at least in some regions" ([source](https://news.ycombinator.com/item?id=49513914)) "Thanks to Merlin Bird ID, I've got rather into birds" ([source](https://news.ycombinator.com/item?id=48482234)) "got me into birding (and using Merlin) this year" ([source](https://news.ycombinator.com/item?id=49517793))
- Used weekly or daily for years (3 comments): "It's Pokemon for old people, I love it and use it at least once a day." ([source](https://news.ycombinator.com/item?id=49007320)) "I use it at least once a week and have done so for several years." ([source](https://news.ycombinator.com/item?id=49008009)) "Use it on my walks every week and it spots some wild stuff" ([source](https://news.ycombinator.com/item?id=48347605))

## What people warn about

- Frequent false positives from background noise (3 comments): "background noise will tend to lead to a lot more false positives, but you should use it as a guide rather than inherently trusting results" ([source](https://news.ycombinator.com/item?id=49520164)) "Merlin is solving the more general problem so makes sense that it's much more finicky and less accurate." ([source](https://news.ycombinator.com/item?id=49519350)) "Merlin's sound ID feature produces a lot of false positives." ([source](https://news.ycombinator.com/item?id=49512991))
- Birds must be close and singing (2 comments): "A problem I often have with Merlin is that the birds seem to know when I record them, and promptly stop singing" ([source](https://news.ycombinator.com/item?id=47631788)) "Merlin requires the bird to be within a couple of meters of me and sing for quite a while" ([source](https://news.ycombinator.com/item?id=49518674))

## Alternatives hackers recommend

- [Seek by iNaturalist](https://hackerapproved.com/p/seek.md): 20 recommend
- [Wildex](https://hackerapproved.com/p/wildex.md): 8 recommend

## Cite as

Hacker Approved, "Merlin Bird ID", https://hackerapproved.com/p/merlin-bird-id/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).