The first and only time I've observed one of these beauties, I was able to capture a couple of images before the bird flew off.
This image was captured on my birthday. I was out shooting and nothing was moving. Upon heading back to the car, I noted what looked like a clump in the tree that didn't belong there and it wasn't until I was fairly close, that the birds eyes caught my attention.
Nikon D2X, 500 AFSII lens and TC14EII Converter. ISO 400, f7.1. Andover, Massachusetts.