This is the first bustard snap I came across, but the head pattern looks very different from Khori Bustard. I wonder if this can be a Black-Bellied Bustard instead?
by areinders moderator
There are several threads that have a lot of images of birds. Based on those pictures I think you are right that it is a Black-bellied Bustard. See this thread: http://talk.snapshotserengeti.org/#/boards/BSG0000008/discussions/DSG0000e8v
I have also seen images of the White-bellied Bustard. It is really neat to see the variety of different birds.