Long-billed Dowitchers spend all their time either bobbing their head up and down searching for food with their long bill, or preening to keep their feathers in good shape. :)
With a good diffuser, I think flash on macros normally looks quite natural and gives a lot of advantages. I don't have a good flash set up like you do. Wish I did. :)
I was stopped at a train crossing recently, and to pass the time I counted how many cars showed no graffiti. It was about one out of ten. And that was just one side of the car, of course.