Twitching for butterflies

I was keen to see if I could get a sighting of a Clouded Yellow butterfly as there seem to be a few around this year. I'd heard they had been seen at one of my favourite reserves - Nottinghamshire WT's Attenborough. No joy on the target butterfly, but lots of other delights, my favourite being the common blue. Always a great place for a day out and lots of dragonflies too, although they were whizzing round too madly for me to attempt a photo. I've heard of another location for the Clouded Yellow, much nearer home so all is not yet lost!