If you have a mole on your foot they will peck at it because they think it's a bug. The fact that it isn't doesn't seem to stop them next time. If we're talking

If you have a mole on your foot they will peck at it because they think it's a bug. The fact that it isn't doesn't seem to stop them next time. If we're talking about intelligence of farm animals, they have to be down the bottom.