Just follow my leader

A large Holstein Friesian dairy herd was sauntering slowly along the lane in single file back to the dairy for the afternoon milking. This herd is very well behaved as there is no one leading them, they know where to go. After a quarter of a mile they will turn right down the village high street past the pub and the church and into the yard. Usually they are grazing closer to home but there is so little grass this year and grass means milk, that the farmer has moved them to the boundaries of his land.