The footage shows a forestry harvester, headlights on, working its way between the trees of a snow-covered birch wood. The machine cuts felled trunks to length and sets them down beside the track within seconds.

In the flat winter light, the slim white birches contrast with the machine’s yellow body, while branches and logs piled on the ground show the work has been going on for some time.

The timber industry notes that frozen ground in winter makes it easier for heavy machinery to operate in forests.