Help with mystery windshield noise

I need help diagnosing a noise that's coming from my windscreen area. It's something I've experienced for a few years but just recently was able to get a video of. I've attached links below. The only difference between the two is the length and POV. The noise is pretty evident, but it's best described as a crackling or vibrating/rattling sound. Give them a watch and let me know if you've experienced something similar or have any hypotheses.

https://www.youtube.com/watch?v=9pn0gnFOTA4

https://www.youtube.com/watch?v=CSmo4I1nsko

I apologize in advance, my girlfriend was operating the camera and she was clearly loosing focus. As a result, the image is a little all-over the place!