Then one day, we got a tip about a location that might allow us to see the half-pint predator, so we took off in search of the pine marten or otherwise called the American marten (Martes americana).

NUI Galway scientists believe that a resurgent pine-marten population is the cause; these cat-sized, tree-climbing predators can kill greys, but perhaps the agility and lighter weight of the reds ...

The only recent evidence for pine martens existing in Wales is sightings by members of the public. The Scottish population appears to be faring relatively well, but in Wales it's a different story.