Lots of these at this location. They're all jumping around so fast, it's hard to get a photo up closer, though.
Common grackle predated by a peregrine falcon at the Arlington Reservoir. I didn't see the falcon catch the grackle, but happened on the falcon while it was sitting upon a rock in the Arlington Reservoir ripping apart and eating the grackle. Rock is about 50' offshore, but because the reservoir is drawn down in the winter, the rock is revealed.