cranes in the wind

on windy thursday i spotted this line up of cranes above a building site. i had to be quite to get them all lined up, but then i notices they were all swaying in the wind !
i assume they must let them blow free like weather vanes in the wind else they’d blow over. it was quite beautiful as they all moved together. unfortunately i was on a windy bridge myself so i couldn’t really stand still and admire it.