The comp may be slightly unbalanced, but there's lots to look at. The Blackheaded heron on top seems to have flown into the grey heron below, but he is actually behind. Notice the two grey heron chicks in the nest too. Taken at the University of Pretoria last year.
Good title, Stuart. I like what you have captured here - there is probably a humorous greeting card somewhere waiting for this image. :) Good action, sharpness, and exposure.