I was once chased by a crow for a good hundred yards, if not more. It cawed at me aggressively, and as I would get farther away, it fly to a new position so it

I was once chased by a crow for a good hundred yards, if not more. It cawed at me aggressively, and as I would get farther away, it fly to a new position so it could keep cawing at me. Several times it buzzed me from behind a few feet from my head. Finally I went around a corner where I was completely obscured from the crow and the place where it originally started harassing me (there was a 12 or 14 story building in the way). I thought I had finally escaped. Then the crow buzzed me one last time, flying past me from behind so close that it hit me on the shoulder.