Vineyard work

On our regular walk this morning we saw the old posts being lifted from the lines of vines. They seemed to be quite well embedded, judging by the effort it was taking to get them out!
Father is driving the tractor with chain attached, and his son wraps it around the post as father lifts the bucket up, thus raising the post out of the ground.
They must have done hundreds of these, and are replacing them with metal posts.