Easy there, big boy!
This photo doesn't offer a sense of scale, but realize that this dude is more than a meter tall! That makes the Kori Bustard (Ardeotis kori) the largest flying bird in Africa (the ostrich is bigger, but doesn't fly). Mature bustards can weigh 40 pounds and are possibly the heaviest creature capable of flight today.
Kori Bustards are rare outside of protected areas. The species is considered "vulnerable" on the endangered list. I was delighted to find this one striding along (like a T-Rex!) looking for a meal on the edge of Lake Magadi (Ngorongoro Crater, Tanzania).