Sakabula bird is the isiZulu name for the Long Tailed Widow bird. If the Zulus call you a Sakabula they mean that you are a flirt and a show-off. This is exactly what this bird does to attract the ladies.
Long-Tailed Widow Bird, (Euplectes progne). The tail is more than twice the length of the bird. These tail feathers were much sought after for the Zulu warrior's headdresses, back in the days of King Shaka and Dingaan. (c1812 - 1838)
The red and white shoulders can be seen in this photo.
Sakabula bird in flight.
This photo from the Internet.