Unfortunately this little devil was heading in the same direction!
If you recognise these pics then I was the guy who showed a select few. Mostly those who were obviously standing there in hushed excited tones looking longingly over the reeds where these were taken.
We were both down there for the remainder of the day, James staying on later and reporting hearing a pair calling but with no further sightings.
Good luck Little Bitterns. The EFRS are with you all the way ;¬D