Strange blue UFO flying over his house in Decatur

On January 5, 2018, a witness saw a weird blue orb flying over his house in Decatur, Arizona. What is it?

Witness statement:

It was 9pm or a few minutes after and the orb passed over my neighbors home and dropped down in to right above my fenceline in the back yard. I ran inside an grabbed my phone to document the event. The orb was moving very slow and was silent, I observed it changing shape and looked like it had openings it was closing, I got closer as it was almost to the end of my fence and said "no wait, come back" it changed directions and came closer to me. It hovered there for a moment and then went back to the path it was on. It almost appeared to be a life form more than a mechanical device. I watched it continue the fenceline towards the water treatment plant were it went into the trees and stopped, turned red and the light faded to dark, as it was leaving my kids arrived from church a caught a brief view of it leaving our yard.

Source, 18th April 2018