Giant's Castle. 50D, 400 f2.8, ISO 400, 1/1000, f 6.3. The light was already over it's best here but I hope the action makes up for it? The approaching bird is a Cape Vulture while the one ducking is an endangered mature Bearded Vulture.
Superb wingspan Stephen, and lovely detail from the underwing. Its good to see two wonderful species in one image. Comp wise, I would maybe place the Cape Vulture dead center in your frame. Well captured.
While the light is just a little harsh, I agree that the action more than makes up for it. I would tone down the whites around the eye of the Bearded Vulture. Do you have a frame like this with separation between the birds?