Black flying saucer caught somewhere in California

On April 23, 2015, an inhabitant of California caught few family photos. On one of the pictures, it is appeared an incredible black flying saucer. What is it?

Witness statement:

I was taking pictures of family members outside the house, i took couple of pictures and one of them had this weird looking object in it.

I told everyone and showed them the picture noone believed it was a UFO.
But until now everytime I look at the picture it gives me goosebumps
Because I believe in them.