Gone for the cute factor with this one! During my time spent in Yellowstone, we visited a photographer who has Pine Marten living on his land, but not just any Pine Marten, the very ones filmed by the BBC for Planet Earth! They would come down and eat the food out of the bird feeders, much to the birds displeasure! This one and climbed in to a hole in an old tree trunk and then popped his head back out as if to realise he had been spotted rummaging for food that wasn't his!
You can read the full story behind how I captured this, and more images on my Encounter with Pine Martens blog post