Here, the video shows the Valtra 121 is fitted with a cut and collect flail to clear 5-year old scrub regrowth to help the chalk grassland and nearby Juniper. The site was cleared 5 years ago.  The ability of the machine to collect the cut materials prevents the nutrient level from being raised in the soil. This helps with chalk grassland and wildflowers as they prefer a low level of soil fertility to prevent being outcompeted by other species.

And the pics show Toby out on the cut and collect flail clearing scrub as part of chalk grassland management