Black flying saucer shot over Irvine, California

On June 4, 2018, a witness found an impressive black UFO over Irvine, California, USA. What is it about?

Witness report:

I was taking a picture of our willow tree for a website. I did not see or hear the object while taking the pic. I saw it after I looked at the pic. I took 2 other pics just before this one. I also noticed about 30 mins later an Air Force prop plane flew over the house at a low altitude.


, 05th June 2018