Plants making strange "whoop" noise on camera and vibrating

I noticed a whitish-blue glowing light on some parts of some plants.
I recorded a short video so I could check it out later and see if it looked like anything.
Upon examining the video now... what?? What is that sound?? I was making a normal video. Nothing from my phone was making that noise, or doing the strange fast zoom motion.
I did notice it seemed like the plant didn't want me to move my camera away from it. I started to move my phone, and it looked like it zoomed back to the center when I moved it away, but it was bright outside and very hot, so I wasn't positive until I watched it just now.