The reason Kangaroos have come to be considered pests is simple: land clearing. Where there was once forest or dense scrub is now open pasture or grassland. Th

The reason Kangaroos have come to be considered pests is simple: land clearing. Where there was once forest or dense scrub is now open pasture or grassland. This increases the food supply for livestock but of course also increases the supply for Kangaroos - and Kangaroos are much more efficient eaters than sheep or cattle. So there are two options really: * Maintain livestock and cull Kangaroos; or * Reduce stocking rates, replant native vegetation on cleared land and the Kangaroo population will reduce accordingly.