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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

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  1. J

    24/7 Raspberry Pi/birdNET monitoring

    from some Python programming work I did, I am pretty sure you can have multiple versions of Python installed at the same time - I think last time I checked I have two versions. Of course you need to correct choose the environment you run the programme under.
  2. J

    24/7 Raspberry Pi/birdNET monitoring

    Hi Peter, I feel like I am missing something, can you advise how you did this? I tried uploading long recordings through the BirdNet web portal, but I recall that it was rather cumbersome. Long upload times (despite fast broadband), and then only a single list of species that varied as I...
  3. J

    24/7 Raspberry Pi/birdNET monitoring

    Hi Peter, I feel like I am missing something, can you advise how you did this? I tried uploading long recordings through the BirdNet web portal, but I recall that it was rather cumbersome. Long upload times (despite fast broadband), and then only a single list of species that varied as I...
  4. J

    24/7 Raspberry Pi/birdNET monitoring

    I couldn’t work out whether this sentence in the report continued the sentence about Bitterns. As you say this is an odd species to run stats on - I would have thought that vocalisations carry so far and population density is so low, that ‘standard’ survey would suffice. Nevertheless the...
  5. J

    24/7 Raspberry Pi/birdNET monitoring

    Stumbled across this article (Evaluation of BirdNet), when looking for data on BirdNet (and PUC) data consumption. Interesting review of the accuracy of the system, but I thought it was particularly interesting that ‘Similarly, BirdNET and Kaleidoscope Pro were able to detect 76% and 78% of the...
  6. J

    24/7 Raspberry Pi/birdNET monitoring

    I also found this on the web to substantiate the cold weather performance of Energizer Ultimate Lithium (https://data.energizer.com/pdfs/l91.pdf). Trying to backtrack from the battery life calculation, I think the drain on the PUC is about 160mA (I could be wrong),. At that level there should...
  7. J

    24/7 Raspberry Pi/birdNET monitoring

    A Bing Search led me to this quote in a refence. 'How Does Cold Weather Affect Lithium-Ion Batteries? Have you ever had to abandon an outdoor project or a road trip because your lithium-ion batteries had died prematurely due to the cold weather? Well, cold weather is hard on lithium-ion...
  8. J

    24/7 Raspberry Pi/birdNET monitoring

    I think a rechargeable power bank will also be impacted by cold weather. A bit expensive (and perhaps not that environmentally sound), but I imagine the single use Energizer ultimate lithium batteries are the way to go in cold weather. They work well down to -20c.
  9. J

    24/7 Raspberry Pi/birdNET monitoring

    I am confused by this statement, which seems a little contrary to the following. Unless you mean that the recorder does not record to SD continously, but only at some noise threshold (a detection?). If the latter then detecting bird sound is generally rather flaky - very hard to differentiate...
  10. J

    24/7 Raspberry Pi/birdNET monitoring

    Now if the PUC could do analysis offline that would be amazing. Imagine being able to interrogate a station and get a list of all the species it had detected, plus the linked sound files for confirmation.
  11. J

    24/7 Raspberry Pi/birdNET monitoring

    Probably stating the obvious, but I think the PUC is really designed around real time analysis and hence as a base station with a WiFi or Internet connection. If all it does is record audio to an SD card when there is no connection - which would then presumably need to be fed back through an...
  12. J

    24/7 Raspberry Pi/birdNET monitoring

    Well BTO don't currently turn down or accept passive audio, as there is no way at present to incorporate passive recordings into BTO survey work (as far as I know). I think their survey methodologies are currently silent on the use of passive recorders, and provide no guidance on how the...
  13. J

    24/7 Raspberry Pi/birdNET monitoring

    Answering my own question. In the U.K., apparently, only need to ask permission to photograph, video someone or record their voice, if they have an ‘expectation of privacy’. This expectation is generally reasonable in their own private space, is not unreasonable to assume in public spaces...
  14. J

    24/7 Raspberry Pi/birdNET monitoring

    Interesting point about privacy. When I listened in to one of the BirdWeather live streams from Florida, I could hear voices - did the people know their conversation was (albeit quite quietly and indistinctly) being broadcast to the world? I use passive recorders and from time to have caught...
  15. J

    24/7 Raspberry Pi/birdNET monitoring

    Thanks for this explanation. However, I am still a bit fuzzy about how the different stations complete the analysis. The reason I say this because there has been some excitement as to whether you can take a device into the field, where there is no wi-fi or mobile phone coverage and to still be...
  16. J

    24/7 Raspberry Pi/birdNET monitoring

    Hi Tim, I am not sure if you noticed the conversation in the tread above, but I am confused about whether BirdWeather (which I understand utilises BirdNET Analyser) can ‘recognise’ species without an internet connection. BirdNET suggests that sounds must be uploaded to the server for analysis...
  17. J

    24/7 Raspberry Pi/birdNET monitoring

    This is test from the BirdNet website regarding the BirdNet app. 'This app lets you record a file using the internal microphone of your Android or iOS device and an artificial neural network will tell you the most probable bird species present in your recording. We use the native sound...
  18. J

    24/7 Raspberry Pi/birdNET monitoring

    Very interesting. Did you try analysing these without an internet connection? If that works and the footprint is so small, why doesn't the BirdNet app work offline?
  19. J

    24/7 Raspberry Pi/birdNET monitoring

    I read this as well, but I have downloaded the BirdWeather app and to be honest it is a pretty simple looking - A 'tap to listen' button and a settings button. The setting button leads to a screen with the following options Detections Probability % Confidence % Privacy Policy text Post to...
  20. J

    24/7 Raspberry Pi/birdNET monitoring

    I never knew BirdWeather existed. I am quite amazed but also a little dazed and confused. If you explore the the map on the BirdWeather Website, the latest detection across the map flash up on the screen. There are also live sound streams from some stations including one in the UK, the USA and...
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