"Fish Heads, Fish Heads, Rolly Polly Fish Heads"
Actually not just heads, but whole bodies. This was taken at a spillway where the carp congregate in a small space to be feed bread. It's been going on for years. It's known as the place that the ducks walk on the backs of the fish! A couple more shots from the day at the end of the gallery http://www.pbase.com/photogrif/critters