Thanks to Jacob (jacooboo photography) I learned of the harvesting of this unusual crop. It obviously works well for this farm as the acreage seems to me to be a lot more than last year.
Filmed in Cumbria, England.

NB Some people wish to know more details of location. I cannot do this because I always assure farmers of anonymity, and they are happy with this. Without it, some would turn me away, to your loss as well as mine!