Hi Redwolf,
The reserve is amazing at the minute, really full of life, and I'm glad its given you some wonderful memories! The kingfishers certainly stick in everyone's minds and many have had their first glimpse of one here.
I've noticed the abundance of blackcaps, and others have also commented on it so you're definitely not the only one to notice them all. Even if you can't spot them easily among the leaves now, you can certainly hear them!
Hopefully see you back soon,
Kate