This is a Little Blue Heron taken as he passed between the shadows of trees in a swamp and backlit sun. I had been trying to get the light behind the Herons as the moved around low over the water.

Juveniles are white and the light passed through their transparent wings to create this unique image of sun and shadow.
Creating this effect in a studio is straight forward light placement, a wild Heron and sun/shadows is serendipity.