I have over 100 audiomoths deployed around southern Lake Superior (MI, WI, MN USA) currently sampling fall migratory songbird activity. They have energizer lithium batteries, 64gb sandisk extreme SD cards, and are in the IPX7 waterproof case zip tied to trees above the snowpack line. I had planned to return to collect all of them in November, and then redeploy them in the same sites next March/April.

My question is what if I just left them up all winter to save money on travel this fall. I'm sure they will deplete batteries and or fill SD cards by December, so they would just be sitting there in the case dead through the winter. And then I would not return to them until early spring to swap cards, batteries and reprogram for spring migration sampling.

Is this worth the risk of data or device loss? How well do they hold up…

Hello! I have a question about the schedule settings. I need to set up a recording schedule that runs from 10:00 AM one day until 10:00 AM the following day. However, when I enter these times and the start date, the AudioMoth starts recording as soon as midnight passes; I assume this is because midnight falls within the specified time interval. Is there a way to prevent this and ensure recording starts only at the scheduled time, while still maintaining the 24-hour recording duration? Thanks for your help!

I am interested in using some AudioMoth Dev boards to record sounds of Arctic foxes on dens. The sounds can be rather mute, so rather than relying on sound triggering (based on amplitude and frequency), I would like to trigger recording whenever general animal activity is recorded on the den via PIR sensor relay. Has anyone done something like this before? As I understand it will require specialized firmware? Best regards,

Lars

We've used a hydromoth for 24 hours. In the last 45 minutes of the first 12 hour recording the only recording in a beeping noise. The next file is marked as corrupted or unsupported and since then the other attempted recordings have shown the same error message. Would appreciate some help with this issue, thanks.