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Post by Jon on Apr 28, 2022 18:56:00 GMT -8
Let me preface this by saying I did not see it, nor did I hear it. I'm pretty bummed about that Anyways, sometimes I put my cellphone outside overnight to record birds as they fly over to pick up their NFCs.. (NFC = Nocturnal Flight Calls) And on the night of the 26th, it picked up a Common Poorwill! It would be a lifer for me -- hence the disappointment -- but it's still cool to have detected one. You can find a recording of the bird here: ebird.org/checklist/S108340501I hope you guys can all sleep at night, because I don't think I can anymore Thanks for the ID Gord!
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Post by Bentley on Apr 28, 2022 19:13:43 GMT -8
The fact that it's singing would make me believe it landed somewhere nearby. Could be wrong.
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Post by Chris on Apr 28, 2022 20:31:49 GMT -8
Great documentation Jon. I am curious, do you just put your phone outside and just record the sound or do you use a specific app?
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Post by Randy on Apr 28, 2022 20:42:02 GMT -8
Wow that's awesome! How do you figure out where in the overnight recording a bird was calling? I've been tempted to get one of these: terralistens.com/
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Post by josterhold on Apr 28, 2022 20:51:12 GMT -8
That is super cool, Jon! Nice one!
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Post by Jon on Apr 28, 2022 20:52:07 GMT -8
I have an Android phone and use the app called "RecForge II" which will allow you to create an indefinitely long WAV recording. I just put the phone in a ziplock and record.
I then transfer the .WAV file to a PC. I then open it up in Audacity, change the view to about 13 seconds of time, and view the spectrogram.
Then use page up/down to jump "pages" of 12 seconds. I just look for anything that looks interesting. Dogs, coyote, frogs, traffic, people etc are annoying decoys.
This typically takes me about 30 minutes to work through 8hrs of recording. I mark the parts I think are birds, then export them all at the end. Once done the original ~2GB file can be deleted.
Other people (I'm part of a FB group) get way more calls and species than I ever have in one night, but it's still interesting.
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Post by josterhold on Apr 28, 2022 20:52:47 GMT -8
Randy, I am definitely tempted to get one of those now too. Didn’t know there was such a device.
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Post by Jon on Apr 28, 2022 20:59:04 GMT -8
Wow that's awesome! How do you figure out where in the overnight recording a bird was calling? I've been tempted to get one of these: terralistens.com/Yeah, that does look cool. There's also this: www.openacousticdevices.info/audiomothWhich I think would be cool to install everywhere I look through the spectrogram to see if there's a bird call. You can also use a python library and a GPU to do automatic detection... But I didn't have much success with that.
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Post by kenneth2019 on Apr 29, 2022 6:38:23 GMT -8
Did not know they tracked NFC's, sure makes sense. I have RecForge II, will have to try this. Thanks for posting this.
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