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How to choose a bat detector

How to choose a bat detector

With our new SM4BAT Full Spectrum and Zero Crossing recorders shipping soon, you may be wondering how to choose the best bat detector and recorder from our product line up.

What they all have in common

All of the Wildlife Acoustics bat detectors have the ability to record bats. They are all equipped with the low noise FG microphone element, making for superior recordings in a variety of climates and conditions.

Passive vs. Active

Our SM3BAT and SM4BAT are weatherproof passive bat detectors, meaning that you may leave them unattended while they record, sometimes for weeks or months at a time.

Our First Scientific Product Grant Results

Our First Scientific Product Grant Results

We were blown away by the volume and quality of the grant applications that we received in this past quarter for our first Wildlife Acoustics Product Grant application cycle. We received over 80 applications from all over the world. There were projects about koalas, penguins, and even crocodiles!

A handful of WA staff volunteered our time to diligently read the applications and make the tough decision of which to choose. In the end, we were happy to be able to provide Wildlife Acoustics gear to two projects this quarter.

Mark Danaher, Friends of the Florida Panther Refuge:

Project: Investigation of Eumops floridanus on the Florida Panther Wildlife Refuge

How should I save, in .wac or in .wav?

How should I save, in .wac or in .wav?

If you have used our ultrasonic Song Meters before, you may be familiar with two different options for saving our recordings, triggered .wav, and our proprietary compressed format, .wac. While we recommend triggered .wav format in almost all cases, there are a few instances where it may benefit you to use .wac format instead.

  • First, we recommend our ultrasonic users record to triggered .wav format for several reasons:
    Triggered .wav format comes with noise scrubbing capability, which allows for more accurate triggers. This means you won’t be wasting card space with recordings that have been falsely triggered by non-animal noises, such as rain. Though .wac files takes up less space than .wav, this could actually offset the amount of space that would have been saved recording in a compressed format if you are in an area prone to ultrasonic noise.
  • Wav is 30% more energy efficient than .wac and can be used directly for ZC analysis
  • If you are using a Song Meter SM3, you will have automatically embedded metadata in your .wav files.

So when is it preferable to use .wac?

If you are interested in GPS tracking, you may find it more valuable to record to the .wac format. .Wac recordings take GPS information every second, allowing for continuous tracking data. While some GPS data is available with .wav, you will have fewer data points than in .wac.

Another advantage of .wac is independent triggering. If you are recording different species on different channels, you may want only one channel to trigger at once. For example, you may want to record birds on one channel, and bats on another. You wouldn’t want bats to trigger recording on both channels if there won’t be another birds to record for several hours. In situations such as these, the .wac format will be much more space saving than .wav.

Wildlife Acoustics is proud to support wildlife conservation efforts

Merlin Tuttle's Bat Conservation Bat Conservation International Bat Conservation Trust Wildlife Habitat Counsil