How do the animals win control of the farm?

In Chapter Two, the rebellion begins before planning is complete. After a night of excessive drinking, Jones neglects to feed the animals. This mistake prompts the hungry animals to break into the food stores. When Jones and his men discover the break in, they begin to whip the animals.... something that officially begins the rebellion when the animals fight back. The animals are successsful in driving Jones and the other men from the farm.