Quelea quelea
The red-billed quelea is the most abundant wild bird species in the world and is known for its massive flocks, that can take hours to fly past.
An excellent place to see these small passerines, close to Gauteng, is the Zaagkuildrift to Kgomo Kgomo birding route. When the quelea are there in force, this is not only a great spot for these small birds, but also for a wide range of predatory birds, including lanner falcon, steppe buzzard, black-shouldered kite, eurasian hobby, amur falcon and lesser spotted eagle.