Exposing for the whites is what these birds are all about. This was captured early morning in winter, so the light has a nice warmth to it - just a bit on the red side. The exposure formula is one I use in direct sunlight for white birds. I determined it years ago by taking a few shots and checking the histogram, which has pixels in the right-most section of the chart but only about halfway to the wall. You need to leave a little headroom for all-white birds.
7D, EF400mm f/5.6L
Manual mode, f/8@1/2000 ISO 400 WB 5100K
AI Servo autofocus, hand-held no flash










