When Jane and Hugh Kemp started planting Christmas trees in their woodland in the Yorkshire Dales in the 1960s, they had no idea what would take up residence in the conifers 25 years later.

At first, they were in disbelief. But the newcomers’ striking orange-red colour and bushy tails were unmistakable.

Red squirrels had moved into Mirk Pot Woods, near Snaizeholme, and they remain there today on a reserve where they can live wild while the land is managed to protect them.