Some people may react to this anomalous motion optical illusion and if you think you might be one of these people it is important to read the caution at the top of this page prior to proceeding.
The birds in this image appear to fly in a counter-clockwise direction.
Herman has a large collection of optical illusions that he has created over time. He has generously allowed me to feature a few of his pieces here. This is the first I chose to show because I love the motion of the birds. His illusions run the gambit and I will be showing you more of his excellent Trick-Art in the future.
Thank you Herman for allowing me to share this with my viewers.