Yup, looks like Flap Neck. Thanks guys. We almost ran over this guy. Our guide was quick enough to see him and make sure that he went under the center of the truck and not under the wheels. Then we stopped, and took pictures :)
We found this guy sitting in the middle of the road in the Serengeti National Park, Tanzania.
https://www.flickr.com/photos/dragonspeed/27348493876/in/album-72157666578964504/
Was hoping that someone might be able to help ID this beauty.