Weird bugs or aliens?
My vote given the two choices: weird bugs.
My guess is the that the first is a moth (with 7 or 8 beats of its wings in one “long exposure” time frame). If you play the video a single frame at a time with VLC, you will see they don’t overlap. In other words what you are seeing is not the size or shape of the item being imaged. It’s not SuperCaterpillar 
The second one with the four synchronized dots, I don’t know. But guess it is gnat like insects doing some mating ritual.
But their synchonization is quit impressive.
Following is a link to Starling “murmuration”. It’s incredible too. I wonder how often they get reported as UFOs.
Unbelievable Starlings
Edit: it didn’t take long to find a murmuration video being labelled as ‘MORPHING “Portal UFO” Seen All Over England 7/21/17’
Disclosure: I am a skeptic when it comes to paranormal claims.