Duloch Park, Dunfermline, Fife, Scotland. About 1600, Wednesday 3rd March 2010.
The crow was really perched just as shown; there’s no digital photo trickery, no combining of images, here!
The only manipulations I used? I cropped the image to show only the raven and trolleys; enhanced its eye (which was in shadow) by adjusting contrast and brightness, to bring out its beadiness (!); and cloned out the supermarket name (a distraction) from the nearest handle.