Each time I see them a tune comes into my head. That springing, rolling song 'Over the Hills and Far Away' seems uniquely matched to the movement of roe deer. I'm quite sure they would not be seen at all on these dark mornings if they didn't have that white rump. That's what you see dancing through the trees. Being crepuscular this is the best time to find them. The snag is it makes getting a picture too difficult - for me at least. Time to enrol on that photography course. But wary of being persuaded to buy expensive equipment!