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So I have a very dead tree (not a biologist, so this just means "no leaves when the trees around it do have leaves"), and I noticed when I stand close to it I can actually hear a "creaking" sound - I recorded a video:

https://www.dropbox.com/s/a3ojwzje1ui6phh/PXL_20230514_235204506.mp4?dl=0

It's a little hard to hear, but I think it's distinct enough. Regular, consistent. And....when I tap the tree, it stops for a moment! (I do this at about 0:16 in the video.) And, if you wait long enough, it starts again! (This is around 1:13 in the video.)

I tried to shoot various parts of the tree - there is damage that I think is Woodpecker, and also some damage that looks like insects....could this be insects? I've read that dry conditions can cause a tree to creak, but not only is it not that dry here, but the tree is very dead!

Anyone have any idea what this sound is?

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    $\begingroup$ When our southern pines die; borers get into them quickly and are relatively loud ( in a quiet forest). .Tapping the tree will stop them briefly. $\endgroup$ May 15, 2023 at 15:00
  • $\begingroup$ @blacksmith37, ah and entomology.ca.uky.edu/ef437 says "the most obvious symptoms [...] These include [...] holes in the bark that exude sawdust or pitch", that might actually be what you see in the video. $\endgroup$
    – cduston
    May 15, 2023 at 16:59

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