I was alerted to this hawk (Cooper's Hawk, I believe) lunching on another bird on an electrical box in my front yard. I was able to bring the big guns to bear (Canon 5D, 500mm lens, tripod) from about 10 yards away before I spooked it. The upside of spooking it was he took what remained of his lunch with him and I didn't have to deal with the bird carcass. Click on the image for a larger version.