Red-tailed Wheatear | Oenanthe chrysopygia
Backlit against the sunrise at Akal Wood Fossil Park, Rajasthan, India. Taken with my long time combo, the Canon EOS-1D Mark IV body and EF800mm f/5.6L IS USM lens. I love the reach the set up provides, but at 16 megapixels and almost ten years old the 1Div is slipping behind on the image quality front, compared to what newer models can produce. And the 800 doesn't seem to have the insane sharpness of the new EF500mm f/4L IS II USM.
Shout out to flickr contact Markus Lilje who first explained the term "back lighting" to me, and how it could be utilized to create interesting pictures. In this case it was a simple issue of necessity, not artistic choice, as the bird was on top of a ridge and there was no where to stand up sun.