Pruning my brother's orchard

We have helped him prune his old home orchard of about 100 trees for the past 4 years, each year thinking its too much for him and he may make a move to a smaller property. We spent the day helping him prune but this year may be the last as he has seen a house in town that he likes and is talking about putting an offer on it. It was a lovely warm spring like day so no hardship really.
He has a rosemary hedge which was in full flower and buzzing with bees. (extra)