Is this a Bank Vole or is it a Field Vole?  I think the give away is the length of the tail.  An alternative name for Field Vole is "Short-tailed Vole"  and although in this picture, not all the tail is visible, in my experience the tail is far too long to be anything other than a Bank Vole.  I may have expected it to have more reddish fur but they are variable apparently. Getting the photograph was interesting.  I am still trying to photograph Crossbills and I went to the area where I have set up the drinking pool. I have been leaving peanuts on the log stumps which attract the woodpeckers and also it seems, Bank Voles! The Roe Deer probably eat them as well as the Squirrels.  I suddenly saw some movement where I had put the nuts and as I concentarted, out shot this dark shape, grabbed a nut and retreated back like a streak, so quick you could hardly tell what it was. I waited again for just a short while and it was back to grab another. This time I was ready and I pressed the camera shutter release.