This object was recorded during an airshow by three different witnesses, all from different angles. One video would mean that the object could have been a bird flying at close range to the camera, but not three. In the third video especially, the object’s motion suggests that it is not a bird or close-flying insect.
The object is not the plane creating the contrail. It is the small bright object that races past in all three videos, showing no contrail.

Story Source:
https://www.youtube.com/watch?v=47e0Y3KpyVc