I visited Stanton Park [Dragon Ponds] just outside Swindon today after a tip off from Gary Chalker about Chasers there [which he saw on 27th]. Sure enough there were at least 5 immature Broad-bodied Chasers and I watched a male 4-spotted Chaser take what was probably his maiden flight!
Also there were a few immature Azure Damselflies and a single Large Red.
I've also received news from Gareth Harris that he's found 4 exuviae of the Hairy Dragonfly in the same undisclosed site in the CWP as last year, when we found 2. So hopefully the population is expanding and flying adults will be soon available in more accessible sites there! He also found Blue-tailed Damselflies nearby on 28th April.
The forecast doesn't look so good for the next few days so will probably be after the bank holiday before more site visits will be feasible...