[–] dajbelshaw 12y ago ↗ I heard this for months and only at home in North East England. I ruled out the nearby wind turbines as I heard it when they weren't on.Never did get to the bottom of it as it disappeared as suddenly as it came.
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[ 3.9 ms ] story [ 10.2 ms ] threadNever did get to the bottom of it as it disappeared as suddenly as it came.