This little beauty, a Crested Tit, (Lophophanes cristatus) is only found in the forests around Inverness and Strathspey in this country. If you know where to look they are not too difficult to find, but they spend a lot of time way up high in the trees. I did try to get a shot without the feeder but none really worked, maybe next trip.
@roachling If you get yourself up there let me know and I can tell you where to go to stand a very good chance of finding them.