Dark cloud like UFO caught in Tucson, Arizona

On December 6, 2016, an inhabitant of Tucson, Arizona, has caught a dark cloud like UFO in broad daylight. Witness didn't see this object to the naked eye. What is it?

Witness report:

Nothing I can really say. I would have never saw it if my mother didnt point it out.
I was waiting for my friend to pick me up after school, and I saw these weird shaped clouds. After taking the picture of said clouds, I sent the pictures to my mother. After a few minutes, she responded saying "Did you see what you caught?" and told me to look at the bottom right of the picture. I did and see that there was a dark orb, with what looks like darker type of windshield on top of the object.

SIDE NOTE: I have another picture I'll send, my mother also says i'ts a UFO, but I believe it's part of the power lines. What do you think? (Bottom right also).