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If you have a Kobo (~ US$ 120 or even less used) you can run this using Cobalt https://github.com/BandarLabs/Cobalt/tree/beta/apps/birds

It seems like Kobo eReaders don't come with a mic.

You could probably use an ESP32-S3-PhotoPainter (which comes with a mic) to do this for even cheaper: https://www.waveshare.com/esp32-s3-photopainter.htm

Yes absolutely, the current Kobo one uses the Mac's mic. I work near a window on my Mac so this is handy without any hardware setup.