National Trust for Scotland - WILDLIFE OF THE WEEK: Pine marten . As adults, pine martens are solitary, shy and mostly nocturnal – making them rather tricky to spot. Often, we see
![Red squirrel finds pine marten a fearsome ally in its fight for survival | Conservation | The Guardian Red squirrel finds pine marten a fearsome ally in its fight for survival | Conservation | The Guardian](https://i.guim.co.uk/img/static/sys-images/Guardian/Pix/pictures/2013/2/22/1361538306942/pine-marten-010.jpg?width=465&dpr=1&s=none)
Red squirrel finds pine marten a fearsome ally in its fight for survival | Conservation | The Guardian
![European pine marten (Martes martes) adult standing on its back legs in a woodland, Ardnamurchan, Scotland, United Kingdom Stock Photo - Alamy European pine marten (Martes martes) adult standing on its back legs in a woodland, Ardnamurchan, Scotland, United Kingdom Stock Photo - Alamy](https://c8.alamy.com/comp/2MB4711/european-pine-marten-martes-martes-adult-standing-on-its-back-legs-in-a-woodland-ardnamurchan-scotland-united-kingdom-2MB4711.jpg)