Photographing Birds in Louisiana

“Don’t worry if the feathers are blown.”  The voice over my shoulder belonged to our friend Marie.  In front of us, in the brilliant sun, were scores of great egrets, their feathers a blinding white.  We were looking out over a rookery where egrets gather to practice their rites of spring.  Marie, a professional photographer, was referring to overexposure so great that all detail would be lost.  Though I’d heard the term only once before, I knew I was in for it:  those egrets were white, and the sun was high in a cloudless sky.