this is a common characteristic of " watoto wa siku hizi"
I heard it has nothing to do with witchcraft and it's all about prestige.
Although I think it's not legal to sell the eggs. The main market is the Arab market. It is said once you have good eggs and they hatch. The bird will never leave it's owner or it's home. It also lives a very many years.
Politics is just things to keep the people divided and foolish and put your trust in men and none of them can do nothing for you...