Courting vultures

About a week and a half ago, I was outside snapping pictures when I saw a pair of black buzzards in a synchronized flight.  One vulture chased the other, and at one point they actually made contact in the air, though I didn't catch that part with the camera. 
We have turkey vultures and black vultures in these parts.  I see the turkey vultures more often.  Sometimes, in reference to Sheriff Andy Taylor prompting someone to call another person a "black-hearted buzzard," we will call the black vultures "black-hearted buzzards." 
Here are the pics in the sequence I took them.