Unknown Space Craft from High in the Sky

I was headed to the store then I was driving on 28th Avenue about 2 streets over from my house then I seen a bunch of birds acting strangely. So I looked up there was 2-alumunus colored square shaped flying objects with a very strange sound but not loud. Then I taken a video footage of the 3 UFOs and went back to record some more then they were gone in nanoseconds. I went home to upload on my computer then screen shotted a couple of the objects seemed to look like they changed into disk shaped objects. I called and made a report to the Fairbanks Police Department.