Who needs cattle dogs when you've got a bale of hay!

We had to shift the cows from one paddock to another so we could irrigate. We have been giving them a bale of hay once every couple of days, So when they were due for a bale we got them to follow the tractor into the new paddock. It worked for all the adult cows but the calves decided that it was too scary and ran back to the old paddock the silly buggers!! We eventually got them back in after a bit of chasing!