I've been trying to shoot this bird for months, but you cant get within 30 yards of him for a good shot! The only smart bird I've ever seen. J/K of course
I've got a bird who gets unhappy with me every time I go out my front door and into the car. She must have a nest somewhere nearby. And I can't figure out what kind of bird it is, so I've been photographing it...with about the same luck you are having here (flying away). Do you have an Audabon book? I ask because the wings are sort of distinctive and a book might identify it for you. It almost looks like it is carrying nesting material between the legs. Have you tried putting your camera on "continuous" or "burst" mode? One press of the shutter will cause it to click and click as long as you hold your finger down (or that's what happens with my camera)... and now you can pan the camera and perhaps get more exposures. (I should take my own advice). Good Luck!