Four little oxpeckers, all in a row and watching me carefully. We ate lunch just across the Botswanan border at a place with a nice river view, and some birds, the only disadvantage to the site being the large amounts of donkey droppings there. The advantage to having burros about, however, was the oxpeckers.
These oxpeckers also proved to me that birds seem to have a sixth sense. They can sense what people are birders, and know to avoid those people. While we were eating, tons of people walked by, wearing bright clothes, talking loudly, walking within feet of these birds. The bird didn't move an inch. But then, when I walked silently towards them, wearing muted colors, they shot in all directions, and disappeared. And I wasn't even that close!