Pine marten (Martes martes) two 4-5 month kits running along branch of tree in caledonian forest, The Black Isle, Highlands, Scotland, UK, July. Photographer quote: 'Watching a family of young pine martens at play in the forest was a joy. And well worth the weeks spent in a small hide.' Did you know? Pine martens are members of the stoat family and are now mainly confined to northern Scotland.