This ball has VERY quickly (in some hours, from absolutely nothing) formed on a small tree. In this two-hour video, you can see the size growing considerably as time passed by.
Shot on the iPhone 14 PM with the 1x camera. I wanted to also keep the ground visible, should the branch break, to see what happens when the swarm hits the ground. This is why I didn't place the camera closer or used the 3x lens.
Please also see my soon-to-be-uploaded 6K OG video shot on my Lumix S5 II + 28-200 + DJI RS4 combo from quite close. It'll be - of course - of vastly better image quality.