This video from Britain is called Grizzled Skipper. Pyrgus malvae (taras) Cornwall 2015.
Translated from Nature Today in the Netherlands:
29 JANUARY 2018 – Wild boar do not have a good reputation everywhere. They can disturb much grassland. But that disturbance can also have its good sides. In De Hoge Veluwe National Park it has been found that the caterpillars of the endangered grizzled skipper butterfly can be found at sites where boar have been digging. So, these pigs are good for the grizzled skipper butterfly.