Hogs have internal clocks that work like Swiss precision time pieces. They get used to being able to feed at certain times. So.....take a feeder out there and set it up to throw corn 30 minutes after daybreak, and 30 minutes before sunset. It will take them a little while to learn the times. The trick is to throw about a pound each spin. If she has a small population of pork then it will take them a while to become competitive. If she has a lot of hogs it will happen real quick. The hogs will be coming to the feeder about 15minutes before it goes off. This does not work at high noon though unless they are starving to death.