Cummins South Africa employees decided it was not enough to merely increase recycling in Alexandra Township, an informal settlement of Johannesburg, South Africa, near the Company’s offices in Kelvin. To really address Alexandra’s problems, they had to look for ways to reduce the area’s population of rats – some the size of small cats. And the best way to control the rat population, they concluded, was to encourage the growth of the owl population, a natural predator but long considered a symbol of bad luck in South Africa.