Did the math. Four elephants at 4000 pounds each divided by 13,000,000 population comes out to 2/100ths of an ounce each ... if they eat them bones and all. This would be a challenge for Jesus himself.
Maybe it depends on how you parse "at least four elephants." Bill clinton would have no trouble doing the numbers.
Besides, they only need to feed Mugabe's cronies and faithful supporters. The rest can starve.