Watching fighter jet and saw a group of small white objects far above the jet that quickly changed shape and moved together NW to SE

At 10:15am three of us were watching the Luke AFB fighter jet fly over Sun City West. Above the jet was a group of small what objects that quickly changed shape as the jet flew below them. The objects were much higher than the jet. They then slowly changed to a "V" with one side longer, then several shifted from one side to the other side very quickly, not movement a bird flock could accomplish and this group was way too high to be birds. Watched the group from about 60 degrees in NW direction to 90 degrees directly above Sun City West then lost the visual in the sun. The group constantly changed shape. At one point several of the objects broke off from the group and could be clearly seen individually then rejoined the group. The one photo we have is very very blurry. It's the faint white object in center. There were NO clouds in the sky, it had recently rained so the sky was exceptionally clear and blue.