2017-01-09 - Birmingham, AL - Unknown

I heard a low humming sound.

About 3 am, I was up watching tv, when I felt a low humming in the air. It had a wide range of volume so I knew it couldn't be in the house because of the brick structure I was in. I walked outside as the humming got stronger, looked up and saw nothing but complete darkness which was normal but the humming was right above me and moving.

Then about thirty seconds later, I noticed the black sky I thought I was seeing was moving cause now I can see the back of it moving away making view of the real night sky with stars and night light. The black object slowly moved on over my back yard which is three acres but the object was at least one mile long and one mile wide cause of the duration of time it took to become noticed by sound and the time it took to disappear. It was about a quarter mile above my trees. The sound was a air humming sound with no detonation.