Thanks for that, Julian! I hadn't heard about it yet so I just had a look and was even able to capture it with the Neximage. I haven't really processed the images yet (I just selected a couple for this thread), but it was fun! At least it was not too cold with the sun in front of me.
I haven't got time now to look at all the images and process them, but if some turn out nice I will post them later this week...
I think this spot looks like a snake...