I see scenes like this frequently where smaller birds pester and hassle large raptors, trying to get them to leave the area. Certainly you would think the raptor would simply crush the littler bird but oftentimes the tactic is successful.
Here, this crow and another were incessantly cawing at this juvenile eagle and performing very close flybys. After trying its best just to ignore them, the eagle gave up and headed for a more peaceful tree without all the ruckus. Taken at Cherry Creek State Park, Colorado.