Date: 4/17/26 9:25 am From: <fredkaluza...> Subject: [birders] FW: π¦ Happy International Bat Day (Bat PUC update)
It looks like the newest versions of the Birdweather PUC continue to be an audio-based product (no radio-based detections as the βTerra-Listensβ device has) but the newest version of PUC has microphones with a broader range of frequency response than the original PUCs have. Still, Birdweather says their online analyzing software will now be returning results for ALL waveforms detected by both versions of the PUC. See below. I donβt know what the frequency response is for the microphone elements in cell-phones butβ¦in theory, βMerlinβ could also be used to identify Mammal, Reptile, Amphibian (and other) sounds in the environment if they wanted to.
From: Tim <tim...> <mailto:<tim...> >
Sent: Friday, April 17, 2026 11:45 AM
To: <fkaluza...> <mailto:<fkaluza...> Subject: π¦ Happy International Bat Day (Bat PUC update)
International Bat Day is about awareness β bats play a critical role in ecosystems around the world, but most of their activity is effectively invisible to us.
Thatβs a big part of the motivation behind this project.
It feels like the perfect moment for a quick update.
We just received the first pilot production Bat PUC units, and theyβre just going into active testing. This is a big milestone β moving from prototypes to something much closer to what will ship.
π¦ Timing
Weβre currently tracking first shipments around the end of May.
The main thing taking a bit more iteration than expected is the rechargeable battery system β making sure it holds up for real overnight use and repeated cycles. Itβs one of those details thatβs easy to get almost right, but worth taking the extra time to get fully right.
Everything else is coming together well, and weβll share more as testing continues.
For those patiently waiting for the 128 kHz bat beta for existing PUCs:
That work is continuing, but itβs currently sequenced behind the Bat Edition effort β making sure the new hardware and full ultrasonic pipeline are exactly where they need to be first.
More to come soon.
π First batch β final call for pre-orders
Weβre getting very close to locking the first production run.
If youβve been thinking about it, nowβs the time:
π Pre-orders for the first batch will be closing soon
The Bat Edition is purpose-built for full ultrasonic capture
π Where this is headed
Now that we can run these continuously overnight, things start to change:
* itβs not just detections β itβs sequences
* not just calls β behavior
* not just moments β patterns
More soon.
We canβt thank you all enough for the support youβve given our little project. Join us in collecting as many sounds, from as many species, in as many locations as we can, while we can.
Thank You!
-Tim, Sam, Vitalii and Yurii (your BirdWeather team)
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