If the Northern Harrier is my nemesis bird, certainly the male of the species, the elusive Grey Ghost, is the arch-nemesis. I rarely get to see them, and then only at a distance. That is also the case here, and I hesitated to post it because it shows the effects of a very large crop (to 36% of full width). But it is the only image I've ever captured of the Grey Ghost, so I figured I had to share it.
D7200, 500f4 + 1.4 TC, ISO 1000, 1/2500s @ f/7.1 manual.