Very quiet morning – very few hirundines, chiff-chaff and even willow warblers.
Good few warblers singing in the reeds with their heads down.
Only highlight was this Garden Warbler
http://andyburnsphotography.zenfolio.com/passerines/h316eef58#h28d9e979
Glamorgan Bird Club 
Hi John – it was along the boardwalk between the visitors centre and the medieval village – the bushes between there and the reedbed tend to be quite productive for warblers – also lesser and common whitethroat in last few days.
Looks suspiciously like a grey (Siberian?) Chiffchaff to me – did you hear it call or sing?
The bird flew into a bush in front of us – about 15 yards away, about 10ft from ground. I expected it to be a female blackcap from the flight/jizz etc. It took a few seconds to get a clear view of head and accertain that it lacked the brown cap. It was generally grey/brown with no distinct super, indeed quite plain and immediately recognisable as s. borin. It hung around for maybe 2 or 3 mintes during which time Andy got onto the bird and got a few shots. The bird made no sound, and didn’t move about the bush, just adjusting stance a bit. At no time did it appear chiff-chaff like and in the field showed nothing that resembled chiff.
When I first saw the photograph I was also struck by the chiff-chaff resemblance, and was most surprised. However I concluded that the hint of a super was far too indistinct, the pale fringed alula was not dark enough, the complete eye ring was wrong, and that the primaries might be much darker on tristis. I will however confess that I have little experience of Siberian chiffs in spring and have not seen a garden warbler for 6 years 🙂
Still looking like a ‘Sibe-type’ Chiffchaff to me, but a few more pics might help if you have any?
Barry, I have posted some more record shots at
http://andyburnsphotography.zenfolio.com/p106853192
Not very good shots but a bit better view of the tertials,primaries and leg colour.
Andy