Periodically a couple of the eagles would engage with each other trying to grasp the other's talons. Since these eagles are all juveniles, I assume that it is more of a territorial behavior. A couple these photos are at some distance in poor light, but I included them so you could see the behavior.
As we were leaving, we spied a couple more eagles flying to the west of the Chain Bridge. This made for some interesting photos, since we were at or close to their level.