It was good to spend an hour in the company of Craig Constance and Tim Griffiths at Llandgedfedd Reservoir recently. Craig had let slip he'd recently seen purple hairstreak around the tree tops on the Island at the Reservoir, so remembering that former Gwent birder Adrian Hickman had recorded them in the same area many years ago it was worth another look. Sure enough a single butterfly came within range resting on a nearby ash trees absorbing the warmth of the early morning sun light. This individual was soon joined by a second and a possible third was seen nearby. It's not that this species is unsual, but its notable in so much that looking for butterflies is generally a low herbage activity, looking in the tree canopy isn't often neglected.