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Re:Detect Migrating Birds with a Plastic Dish and a Cheap Mi... by bearbin on Monday July 08, 2024 @11:40AM (#40906363)
Re:Detect Migrating Birds with a Plastic Dish and a Cheap Mi... by hcfman on Monday July 08, 2024 @12:18PM (#40906702)
Very nice project the above.

If you want to pay more you can also get Pettersen ultrasonic microphones. These have a USB microphone and will also work with my sbts-aru recorder. Which means you could in principle also geolocate where the bats are.