Followed by a Blackbird

While jogging recently in Stockton, California I was followed by a blackbird.  He/she flew overhead but was not aggressive.  At one point I looked down and saw a dead adolescent blackbird on the pavement.  Was the bird thinking I was responsible?

A week or so later I was driving in the Sierras and noticed a crow following the truck in front of my car.  It stayed with us for a minute or so on a windy road.  It was not aggressive but was definitely interested in something on or in that truck.

I think that sometimes one can be so focused on work and tasks they don't take time to look around and observe how animals are silently interacting or reacting to our movements.  Perhaps these incidents are not so rare in occurrence just in observation.