Nest Cam Night Vision Orb, Bug or Dust flying at high speed.
December 11th, 11:04 PM. Orb, bug or dust, making a crackling noise at 0:09 then flying at high speed from right corner 0:11 spiraling and disappearing top. You can even hear like a doppler effect sound when it flew away at 0:12
Interesting observations are that the are where it shoot from, its a rounded earth map ornament, and behind is just a corner wall, no exhaust ventilation.
I love to know what kind of bug could move at such great speed.