Do I look like a twig?

Just back from a walk around Holyrood Park. On descending the hillside, I heard a rustling, flapping noise just behind me. It sounded like a plastic bag being blown around. After turning a few times I found that it was actually a crow flying around my head. It didn't seem to be actually agressive--it could have dive bombed me much more assertively if it had wanted to. It kept pace with me for quite a distance, always seeming about to land on my head, but not quite doing so. I wonder if there was something aerodynamic going on--some kind of eddy created behind me by the stiff breeze that could comfortably accommodate a crow? Or was it just trying to weird me out?