White-necked ravens at Giants Castle reserve in South Africa seemed to really enjoy giving the vultures a hard time, even when there was no food at stake, just for fun.
This was taken in the afternoon, and the scene was heavily backlit.
Great positioning of the birds, and very good to capture just the right moment of interaction between the two. I agree that the vulture in particular could use some sharpening, and the raven could use more detail in the blacks and less "hot" white on the neck - although that exposure would be very difficult to achieve successfully.