Rhinoptilus africanus
As its name suggests, this fairly common resident of semi arid and desert plains is distinguished by means of its 2 narrow, black breastbands.
We first saw this species in June 2012 while birding the Karoo National Park near Beeufort West, South Africa. This started a flood of sightings as we continued our trip into Namibia, and located the coursers at Sossusvlei and Etosha.